diff --git a/platform/lang-impl/src/com/intellij/ide/extensionResources/ExtensionsRootType.java b/platform/lang-impl/src/com/intellij/ide/extensionResources/ExtensionsRootType.java
index ffa1d04199f4..7f8fa57f153e 100644
--- a/platform/lang-impl/src/com/intellij/ide/extensionResources/ExtensionsRootType.java
+++ b/platform/lang-impl/src/com/intellij/ide/extensionResources/ExtensionsRootType.java
@@ -56,11 +56,11 @@ import java.util.Set;
  * <p> Bundled resources are updated automatically upon plugin version change. For bundled plugins, application version is used. </p>
  */
 public class ExtensionsRootType extends RootType {
-  public static final String EXTENSIONS_PATH = "extensions";
-  public static final String BACKUP_FILE_EXTENSION = "old";
-
   static final Logger LOG = Logger.getInstance(ExtensionsRootType.class);
+
   private static final String HASH_ALGORITHM = "MD5";
+  private static final String EXTENSIONS_PATH = "extensions";
+  private static final String BACKUP_FILE_EXTENSION = "old";
 
   ExtensionsRootType() {
     super(EXTENSIONS_PATH, "Extensions");
@@ -129,6 +129,11 @@ public class ExtensionsRootType extends RootType {
     return super.substituteName(project, file);
   }
 
+  public boolean isBackupFile(@NotNull VirtualFile file) {
+    String extension = file.getExtension();
+    return !file.isDirectory() && extension != null && extension.startsWith(BACKUP_FILE_EXTENSION);
+  }
+
   @Nullable
   String getPath(@Nullable VirtualFile resource) {
     VirtualFile pluginResourcesDir = getPluginResourcesDirectoryFor(resource);
diff --git a/platform/lang-impl/src/com/intellij/ide/script/IdeStartupScripts.java b/platform/lang-impl/src/com/intellij/ide/script/IdeStartupScripts.java
index 086a9a23f48c..3d6c8aeaba9f 100644
--- a/platform/lang-impl/src/com/intellij/ide/script/IdeStartupScripts.java
+++ b/platform/lang-impl/src/com/intellij/ide/script/IdeStartupScripts.java
@@ -170,9 +170,10 @@ class IdeStartupScripts extends ApplicationComponent.Adapter {
     }
 
     scripts = ContainerUtil.filter(scripts, new Condition<VirtualFile>() {
+      private final ExtensionsRootType myExtensionsRootType = ExtensionsRootType.getInstance();
       @Override
       public boolean value(VirtualFile file) {
-        return !file.isDirectory() && !README_FILE_NAME.equals(file.getName());
+        return !file.isDirectory() && !myExtensionsRootType.isBackupFile(file) && !README_FILE_NAME.equals(file.getName());
       }
     });