diff --git a/platform/lang-impl/src/com/intellij/platform/backend/documentation/DocumentationLinkHandler.java b/platform/lang-impl/src/com/intellij/platform/backend/documentation/DocumentationLinkHandler.java
index 61949d2f7428..f167d8e249ef 100644
--- a/platform/lang-impl/src/com/intellij/platform/backend/documentation/DocumentationLinkHandler.java
+++ b/platform/lang-impl/src/com/intellij/platform/backend/documentation/DocumentationLinkHandler.java
@@ -11,7 +11,9 @@ import org.jetbrains.annotations.Nullable;
 public interface DocumentationLinkHandler {
 
   @Internal
-  ExtensionPointName<DocumentationLinkHandler> EP_NAME = ExtensionPointName.create("com.intellij.platform.documentation.linkHandler");
+  ExtensionPointName<DocumentationLinkHandler> EP_NAME = ExtensionPointName.create(
+    "com.intellij.platform.backend.documentation.linkHandler"
+  );
 
   /**
    * @return result of resolving the given {@code url} to another {@link DocumentationTarget},
diff --git a/platform/lang-impl/src/com/intellij/platform/backend/documentation/DocumentationTargetProvider.java b/platform/lang-impl/src/com/intellij/platform/backend/documentation/DocumentationTargetProvider.java
index 5fcf2b104eca..6971f1b81184 100644
--- a/platform/lang-impl/src/com/intellij/platform/backend/documentation/DocumentationTargetProvider.java
+++ b/platform/lang-impl/src/com/intellij/platform/backend/documentation/DocumentationTargetProvider.java
@@ -20,7 +20,9 @@ import java.util.List;
 public interface DocumentationTargetProvider {
 
   @Internal
-  ExtensionPointName<DocumentationTargetProvider> EP_NAME = ExtensionPointName.create("com.intellij.platform.documentation.targetProvider");
+  ExtensionPointName<DocumentationTargetProvider> EP_NAME = ExtensionPointName.create(
+    "com.intellij.platform.backend.documentation.targetProvider"
+  );
 
   @RequiresReadLock
   @RequiresBackgroundThread
diff --git a/platform/lang-impl/src/com/intellij/platform/backend/documentation/PsiDocumentationTargetProvider.java b/platform/lang-impl/src/com/intellij/platform/backend/documentation/PsiDocumentationTargetProvider.java
index a87db483f898..3eab4fd83e6b 100644
--- a/platform/lang-impl/src/com/intellij/platform/backend/documentation/PsiDocumentationTargetProvider.java
+++ b/platform/lang-impl/src/com/intellij/platform/backend/documentation/PsiDocumentationTargetProvider.java
@@ -10,7 +10,7 @@ import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 /**
- * Implement this interface and register as {@code com.intellij.platform.documentation.psiTargetProvider} extension
+ * Implement this interface and register as {@code com.intellij.platform.backend.documentation.psiTargetProvider} extension
  * to provide a {@link DocumentationTarget} implementation by a {@link PsiElement}.
  *
  * @see DocumentationTargetProvider
@@ -19,7 +19,9 @@ import org.jetbrains.annotations.Nullable;
 public interface PsiDocumentationTargetProvider {
 
   @Internal
-  ExtensionPointName<PsiDocumentationTargetProvider> EP_NAME = ExtensionPointName.create("com.intellij.platform.documentation.psiTargetProvider");
+  ExtensionPointName<PsiDocumentationTargetProvider> EP_NAME = ExtensionPointName.create(
+    "com.intellij.platform.backend.documentation.psiTargetProvider"
+  );
 
   /**
    * @return target to handle documentation actions which are invoked on the given {@code element},
diff --git a/platform/lang-impl/src/com/intellij/platform/backend/documentation/SymbolDocumentationTargetProvider.java b/platform/lang-impl/src/com/intellij/platform/backend/documentation/SymbolDocumentationTargetProvider.java
index ad50bc93e261..3b383754e352 100644
--- a/platform/lang-impl/src/com/intellij/platform/backend/documentation/SymbolDocumentationTargetProvider.java
+++ b/platform/lang-impl/src/com/intellij/platform/backend/documentation/SymbolDocumentationTargetProvider.java
@@ -14,7 +14,7 @@ import org.jetbrains.annotations.Nullable;
 /**
  * To provide a {@link DocumentationTarget} by a Symbol, either:
  * <ul>
- * <li>implement {@link SymbolDocumentationTargetProvider} and register as {@code com.intellij.platform.documentation.symbolTargetProvider} extension</li>
+ * <li>implement {@link SymbolDocumentationTargetProvider} and register as {@code com.intellij.platform.backend.documentation.symbolTargetProvider} extension</li>
  * <li>implement {@link DocumentationSymbol} in a Symbol to provide the documentation target for the symbol</li>
  * <li>implement {@link DocumentationTarget} directly in a Symbol</li>
  * </ul>
@@ -26,7 +26,9 @@ import org.jetbrains.annotations.Nullable;
 public interface SymbolDocumentationTargetProvider {
 
   @Internal
-  ExtensionPointName<SymbolDocumentationTargetProvider> EP_NAME = ExtensionPointName.create("com.intellij.platform.documentation.symbolTargetProvider");
+  ExtensionPointName<SymbolDocumentationTargetProvider> EP_NAME = ExtensionPointName.create(
+    "com.intellij.platform.backend.documentation.symbolTargetProvider"
+  );
 
   /**
    * @return target to handle documentation actions which are invoked on the given {@code symbol},
diff --git a/platform/platform-resources/src/META-INF/LangExtensionPoints.xml b/platform/platform-resources/src/META-INF/LangExtensionPoints.xml
index 4d8c3c780bd4..0404ea1e35cb 100644
--- a/platform/platform-resources/src/META-INF/LangExtensionPoints.xml
+++ b/platform/platform-resources/src/META-INF/LangExtensionPoints.xml
@@ -639,13 +639,13 @@
     <extensionPoint name="lang.symbolTypeProvider" dynamic="true" interface="com.intellij.codeInsight.navigation.SymbolTypeProvider"/>
     <extensionPoint name="readerModeProvider" dynamic="true" interface="com.intellij.codeInsight.actions.ReaderModeProvider"/>
     <extensionPoint name="readerModeMatcher" dynamic="true" interface="com.intellij.codeInsight.actions.ReaderModeMatcher"/>
-    <extensionPoint qualifiedName="com.intellij.platform.documentation.targetProvider" dynamic="true"
+    <extensionPoint qualifiedName="com.intellij.platform.backend.documentation.targetProvider" dynamic="true"
                     interface="com.intellij.platform.backend.documentation.DocumentationTargetProvider"/>
-    <extensionPoint qualifiedName="com.intellij.platform.documentation.symbolTargetProvider" dynamic="true"
+    <extensionPoint qualifiedName="com.intellij.platform.backend.documentation.symbolTargetProvider" dynamic="true"
                     interface="com.intellij.platform.backend.documentation.SymbolDocumentationTargetProvider"/>
-    <extensionPoint qualifiedName="com.intellij.platform.documentation.psiTargetProvider" dynamic="true"
+    <extensionPoint qualifiedName="com.intellij.platform.backend.documentation.psiTargetProvider" dynamic="true"
                     interface="com.intellij.platform.backend.documentation.PsiDocumentationTargetProvider"/>
-    <extensionPoint qualifiedName="com.intellij.platform.documentation.linkHandler" dynamic="true"
+    <extensionPoint qualifiedName="com.intellij.platform.backend.documentation.linkHandler" dynamic="true"
                     interface="com.intellij.platform.backend.documentation.DocumentationLinkHandler"/>
     <extensionPoint qualifiedName="com.intellij.properties.files.provider"
                     interface="com.intellij.properties.provider.PropertiesProvider" dynamic="true"/>
diff --git a/platform/platform-resources/src/META-INF/LangExtensions.xml b/platform/platform-resources/src/META-INF/LangExtensions.xml
index 35110730ec50..0f60ac3123aa 100644
--- a/platform/platform-resources/src/META-INF/LangExtensions.xml
+++ b/platform/platform-resources/src/META-INF/LangExtensions.xml
@@ -1692,7 +1692,7 @@
     <inspectionResultsExportActionProvider implementation="com.intellij.codeInspection.ui.actions.ExportToHTMLAction"/>
     <inspectionResultsExportActionProvider implementation="com.intellij.codeInspection.ui.actions.ExportToXMLAction"/>
   </extensions>
-  <extensions defaultExtensionNs="com.intellij.platform">
+  <extensions defaultExtensionNs="com.intellij.platform.backend">
     <documentation.targetProvider
       implementation="com.intellij.lang.documentation.symbol.impl.DefaultTargetSymbolDocumentationTargetProvider"/>
     <documentation.linkHandler implementation="com.intellij.lang.documentation.psi.PsiDocumentationLinkHandler"/>
diff --git a/plugins/kotlin/plugin/k2/resources/META-INF/k2.xml b/plugins/kotlin/plugin/k2/resources/META-INF/k2.xml
index 57e9ff64a164..4f7ef7c7ee24 100644
--- a/plugins/kotlin/plugin/k2/resources/META-INF/k2.xml
+++ b/plugins/kotlin/plugin/k2/resources/META-INF/k2.xml
@@ -101,11 +101,11 @@
                                implementationClass="org.jetbrains.kotlin.idea.parameterInfo.KotlinHighLevelClassTypeArgumentInfoHandler"/>
     <codeInsight.parameterInfo language="kotlin"
                                implementationClass="org.jetbrains.kotlin.idea.parameterInfo.KotlinHighLevelFunctionTypeArgumentInfoHandler"/>
-    <platform.documentation.psiTargetProvider id="KotlinDocumentationTargetProvider"
-                                              implementation="org.jetbrains.kotlin.idea.quickDoc.KotlinPsiDocumentationTargetProvider"/>
-    <platform.documentation.linkHandler implementation="org.jetbrains.kotlin.idea.quickDoc.KotlinDocumentationLinkHandler"/>
-    <platform.documentation.targetProvider id="KotlinDocumentationTargetProvider"
-                                           implementation="org.jetbrains.kotlin.idea.quickDoc.KotlinDocumentationTargetProvider"/>
+    <platform.backend.documentation.psiTargetProvider id="KotlinDocumentationTargetProvider"
+                                                      implementation="org.jetbrains.kotlin.idea.quickDoc.KotlinPsiDocumentationTargetProvider"/>
+    <platform.backend.documentation.linkHandler implementation="org.jetbrains.kotlin.idea.quickDoc.KotlinDocumentationLinkHandler"/>
+    <platform.backend.documentation.targetProvider id="KotlinDocumentationTargetProvider"
+                                                   implementation="org.jetbrains.kotlin.idea.quickDoc.KotlinDocumentationTargetProvider"/>
   </extensions>