diff --git a/platform/projectModel-impl/src/com/intellij/openapi/roots/impl/FileIndexBase.java b/platform/projectModel-impl/src/com/intellij/openapi/roots/impl/FileIndexBase.java
index 6e583f4b9b57..d8d00e2026fb 100644
--- a/platform/projectModel-impl/src/com/intellij/openapi/roots/impl/FileIndexBase.java
+++ b/platform/projectModel-impl/src/com/intellij/openapi/roots/impl/FileIndexBase.java
@@ -108,7 +108,7 @@ abstract class FileIndexBase implements FileIndex {
       ModuleRootManager.getInstance(module).getSourceRoots()};
   }
 
-  boolean isInContent(@NotNull VirtualFile file, @NotNull DirectoryInfo info) {
+  protected boolean isInContent(@NotNull VirtualFile file, @NotNull DirectoryInfo info) {
     return ProjectFileIndexImpl.isFileInContent(file, info);
   }
 }
diff --git a/platform/projectModel-impl/src/com/intellij/openapi/roots/impl/ModuleFileIndexImpl.java b/platform/projectModel-impl/src/com/intellij/openapi/roots/impl/ModuleFileIndexImpl.java
index a2d056309081..5d8b6f0f23a1 100644
--- a/platform/projectModel-impl/src/com/intellij/openapi/roots/impl/ModuleFileIndexImpl.java
+++ b/platform/projectModel-impl/src/com/intellij/openapi/roots/impl/ModuleFileIndexImpl.java
@@ -189,7 +189,7 @@ public class ModuleFileIndexImpl extends FileIndexBase implements ModuleFileInde
   }
 
   @Override
-  boolean isInContent(@NotNull VirtualFile file, @NotNull DirectoryInfo info) {
+  protected boolean isInContent(@NotNull VirtualFile file, @NotNull DirectoryInfo info) {
     return ProjectFileIndexImpl.isFileInContent(file, info) && myModule.equals(info.getModule());
   }
 }