diff --git a/plugins/devkit/src/navigation/DescriptionTypeRelatedItemLineMarkerProvider.java b/plugins/devkit/src/navigation/DescriptionTypeRelatedItemLineMarkerProvider.java
index 1d759b6a8669..a5c4fba2db15 100644
--- a/plugins/devkit/src/navigation/DescriptionTypeRelatedItemLineMarkerProvider.java
+++ b/plugins/devkit/src/navigation/DescriptionTypeRelatedItemLineMarkerProvider.java
@@ -16,7 +16,6 @@
 package org.jetbrains.idea.devkit.navigation;
 
 import com.intellij.codeInsight.daemon.RelatedItemLineMarkerInfo;
-import com.intellij.codeInsight.daemon.RelatedItemLineMarkerProvider;
 import com.intellij.codeInsight.navigation.NavigationGutterIconBuilder;
 import com.intellij.icons.AllIcons;
 import com.intellij.navigation.GotoRelatedItem;
@@ -24,8 +23,10 @@ import com.intellij.openapi.editor.markup.GutterIconRenderer;
 import com.intellij.openapi.module.Module;
 import com.intellij.openapi.module.ModuleUtilCore;
 import com.intellij.openapi.util.text.StringUtil;
-import com.intellij.psi.*;
-import com.intellij.psi.search.GlobalSearchScope;
+import com.intellij.psi.PsiClass;
+import com.intellij.psi.PsiDirectory;
+import com.intellij.psi.PsiElement;
+import com.intellij.psi.PsiFile;
 import com.intellij.psi.util.InheritanceUtil;
 import com.intellij.util.NotNullFunction;
 import com.intellij.util.containers.ContainerUtil;
@@ -41,7 +42,7 @@ import java.util.Collections;
 import java.util.Comparator;
 import java.util.List;
 
-public class DescriptionTypeRelatedItemLineMarkerProvider extends RelatedItemLineMarkerProvider {
+public class DescriptionTypeRelatedItemLineMarkerProvider extends DevkitRelatedLineMarkerProviderBase {
 
   private static final NotNullFunction<PsiFile, Collection<? extends PsiElement>> CONVERTER =
     new NotNullFunction<PsiFile, Collection<? extends PsiElement>>() {
@@ -74,11 +75,6 @@ public class DescriptionTypeRelatedItemLineMarkerProvider extends RelatedItemLin
     Module module = ModuleUtilCore.findModuleForPsiElement(psiClass);
     if (module == null) return;
 
-    final GlobalSearchScope scope = GlobalSearchScope.moduleRuntimeScope(module, false);
-    final PsiClass actionClass = JavaPsiFacade.getInstance(psiClass.getProject())
-      .findClass(DescriptionType.INSPECTION.getClassName(), scope);
-    if (actionClass == null) return;
-
     PsiElement highlightingElement = psiClass.getNameIdentifier();
     if (highlightingElement == null) return;
 
diff --git a/plugins/devkit/src/navigation/DevkitRelatedLineMarkerProviderBase.java b/plugins/devkit/src/navigation/DevkitRelatedLineMarkerProviderBase.java
new file mode 100644
index 000000000000..4a69355407b7
--- /dev/null
+++ b/plugins/devkit/src/navigation/DevkitRelatedLineMarkerProviderBase.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2000-2014 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.jetbrains.idea.devkit.navigation;
+
+import com.intellij.codeInsight.daemon.RelatedItemLineMarkerInfo;
+import com.intellij.codeInsight.daemon.RelatedItemLineMarkerProvider;
+import com.intellij.openapi.project.Project;
+import com.intellij.psi.JavaPsiFacade;
+import com.intellij.psi.PsiElement;
+import com.intellij.psi.search.GlobalSearchScope;
+import com.intellij.util.containers.ContainerUtil;
+import org.jetbrains.idea.devkit.inspections.DescriptionType;
+
+import java.util.Collection;
+import java.util.List;
+
+/**
+ * Do not process when current project is not a Plugin project.
+ */
+public abstract class DevkitRelatedLineMarkerProviderBase extends RelatedItemLineMarkerProvider {
+
+  @Override
+  public void collectNavigationMarkers(List<PsiElement> elements,
+                                       Collection<? super RelatedItemLineMarkerInfo> result,
+                                       boolean forNavigation) {
+    final PsiElement psiElement = ContainerUtil.getFirstItem(elements);
+    if (psiElement == null ||
+        !isPluginProject(psiElement.getProject())) {
+      return;
+    }
+
+    super.collectNavigationMarkers(elements, result, forNavigation);
+  }
+
+  private static boolean isPluginProject(Project project) {
+    return JavaPsiFacade.getInstance(project).findClass(DescriptionType.INSPECTION.getClassName(),
+                                                        GlobalSearchScope.allScope(project)) != null;
+  }
+}
diff --git a/plugins/devkit/src/navigation/ExtensionPointDeclarationRelatedItemLineMarkerProvider.java b/plugins/devkit/src/navigation/ExtensionPointDeclarationRelatedItemLineMarkerProvider.java
index 8ecdbac61291..d71b54a540f6 100644
--- a/plugins/devkit/src/navigation/ExtensionPointDeclarationRelatedItemLineMarkerProvider.java
+++ b/plugins/devkit/src/navigation/ExtensionPointDeclarationRelatedItemLineMarkerProvider.java
@@ -16,7 +16,6 @@
 package org.jetbrains.idea.devkit.navigation;
 
 import com.intellij.codeInsight.daemon.RelatedItemLineMarkerInfo;
-import com.intellij.codeInsight.daemon.RelatedItemLineMarkerProvider;
 import com.intellij.codeInsight.navigation.NavigationGutterIconBuilder;
 import com.intellij.icons.AllIcons;
 import com.intellij.navigation.GotoRelatedItem;
@@ -37,7 +36,7 @@ import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
 
-public class ExtensionPointDeclarationRelatedItemLineMarkerProvider extends RelatedItemLineMarkerProvider {
+public class ExtensionPointDeclarationRelatedItemLineMarkerProvider extends DevkitRelatedLineMarkerProviderBase {
 
   private static final NotNullFunction<ExtensionPointCandidate, Collection<? extends PsiElement>> CONVERTER =
     new NotNullFunction<ExtensionPointCandidate, Collection<? extends PsiElement>>() {
diff --git a/plugins/devkit/testSources/navigation/ExtensionPointDeclarationRelatedItemLineMarkerProviderTest.java b/plugins/devkit/testSources/navigation/ExtensionPointDeclarationRelatedItemLineMarkerProviderTest.java
index 220c1959fd36..703042c857dc 100644
--- a/plugins/devkit/testSources/navigation/ExtensionPointDeclarationRelatedItemLineMarkerProviderTest.java
+++ b/plugins/devkit/testSources/navigation/ExtensionPointDeclarationRelatedItemLineMarkerProviderTest.java
@@ -16,6 +16,7 @@
 package org.jetbrains.idea.devkit.navigation;
 
 import com.intellij.codeInsight.daemon.GutterMark;
+import com.intellij.codeInspection.LocalInspectionEP;
 import com.intellij.icons.AllIcons;
 import com.intellij.openapi.application.PluginPathManager;
 import com.intellij.openapi.extensions.ExtensionPointName;
@@ -34,8 +35,10 @@ public class ExtensionPointDeclarationRelatedItemLineMarkerProviderTest extends
 
   @Override
   protected void tuneFixture(JavaModuleFixtureBuilder moduleBuilder) throws Exception {
-    String pathForClass = PathUtil.getJarPathForClass(ExtensionPointName.class);
-    moduleBuilder.addLibrary("extensions", pathForClass);
+    String extensionsJar = PathUtil.getJarPathForClass(ExtensionPointName.class);
+    moduleBuilder.addLibrary("extensions", extensionsJar);
+    String langApiJar = PathUtil.getJarPathForClass(LocalInspectionEP.class);
+    moduleBuilder.addLibrary("lang-api", langApiJar);
   }
 
   public void testMyStringEP() {