diff --git a/platform/core-impl/src/com/intellij/openapi/editor/impl/PsiBasedStripTrailingSpacesFilter.java b/platform/core-impl/src/com/intellij/openapi/editor/impl/PsiBasedStripTrailingSpacesFilter.java
index 4dc68870a0d1..f01efd38a08e 100644
--- a/platform/core-impl/src/com/intellij/openapi/editor/impl/PsiBasedStripTrailingSpacesFilter.java
+++ b/platform/core-impl/src/com/intellij/openapi/editor/impl/PsiBasedStripTrailingSpacesFilter.java
@@ -75,7 +75,7 @@ public abstract class PsiBasedStripTrailingSpacesFilter implements StripTrailing
   protected abstract void process(@NotNull PsiFile psiFile);
 
   @Nullable
-  private static Language getDocumentLanguage(@NotNull Document document) {
+  public static Language getDocumentLanguage(@NotNull Document document) {
     FileDocumentManager manager = FileDocumentManager.getInstance();
     VirtualFile file = manager.getFile(document);
     if (file != null && file.isValid()) {