diff --git a/platform/core-impl/src/com/intellij/util/indexing/FileContentImpl.java b/platform/core-impl/src/com/intellij/util/indexing/FileContentImpl.java
index 5d7ff9a8dd46..f968aeef12ec 100644
--- a/platform/core-impl/src/com/intellij/util/indexing/FileContentImpl.java
+++ b/platform/core-impl/src/com/intellij/util/indexing/FileContentImpl.java
@@ -212,7 +212,7 @@ public class FileContentImpl extends IndexedFileImpl implements PsiDependentFile
 
   @Override
   public String toString() {
-    return myFileName;
+    return "FileContentImpl(" + getFileName() + ")";
   }
 
   public byte @Nullable [] getHash() {
diff --git a/platform/core-impl/src/com/intellij/util/indexing/IndexedFileImpl.java b/platform/core-impl/src/com/intellij/util/indexing/IndexedFileImpl.java
index 22e5ae41784d..ac429b9001c2 100644
--- a/platform/core-impl/src/com/intellij/util/indexing/IndexedFileImpl.java
+++ b/platform/core-impl/src/com/intellij/util/indexing/IndexedFileImpl.java
@@ -56,4 +56,9 @@ public class IndexedFileImpl extends UserDataHolderBase implements IndexedFile {
   public void setProject(@NotNull Project project) {
     myProject = project;
   }
+
+  @Override
+  public String toString() {
+    return "IndexedFileImpl(" + getFileName() + ")";
+  }
 }