diff --git a/platform/indexing-api/src/com/intellij/util/indexing/FileBasedIndexExtension.java b/platform/indexing-api/src/com/intellij/util/indexing/FileBasedIndexExtension.java
index 8e5c2dbde00c..ae532be17598 100644
--- a/platform/indexing-api/src/com/intellij/util/indexing/FileBasedIndexExtension.java
+++ b/platform/indexing-api/src/com/intellij/util/indexing/FileBasedIndexExtension.java
@@ -21,7 +21,7 @@ import java.util.Collections;
 @ApiStatus.OverrideOnly
 public abstract class FileBasedIndexExtension<K, V> extends IndexExtension<K, V, FileContent> {
 
-  public static final ExtensionPointName<FileBasedIndexExtension> EXTENSION_POINT_NAME =
+  public static final ExtensionPointName<FileBasedIndexExtension<?, ?>> EXTENSION_POINT_NAME =
     ExtensionPointName.create("com.intellij.fileBasedIndex");
 
   private static final int DEFAULT_CACHE_SIZE = 1024;
diff --git a/platform/lang-impl/src/com/intellij/util/indexing/FileBasedIndexImpl.java b/platform/lang-impl/src/com/intellij/util/indexing/FileBasedIndexImpl.java
index b667d9ccb44c..b67eca401335 100644
--- a/platform/lang-impl/src/com/intellij/util/indexing/FileBasedIndexImpl.java
+++ b/platform/lang-impl/src/com/intellij/util/indexing/FileBasedIndexImpl.java
@@ -2484,9 +2484,9 @@ public final class FileBasedIndexImpl extends FileBasedIndex {
 
     private void initAssociatedDataForExtensions() {
       Activity activity = StartUpMeasurer.startActivity("file index extensions iteration");
-      Iterator<FileBasedIndexExtension> extensions =
+      Iterator<FileBasedIndexExtension<?, ?>> extensions =
         IndexInfrastructure.hasIndices() ?
-        ((ExtensionPointImpl<FileBasedIndexExtension>)FileBasedIndexExtension.EXTENSION_POINT_NAME.getPoint(null)).iterator() :
+        ((ExtensionPointImpl<FileBasedIndexExtension<?, ?>>)FileBasedIndexExtension.EXTENSION_POINT_NAME.getPoint(null)).iterator() :
         Collections.emptyIterator();
 
       // todo: init contentless indices first ?