diff --git a/platform/lang-impl/src/com/intellij/openapi/file/exclude/EnforcedPlainTextFileTypeManager.java b/platform/lang-impl/src/com/intellij/openapi/file/exclude/EnforcedPlainTextFileTypeManager.java
index b63561c284f9..8965a435cd80 100644
--- a/platform/lang-impl/src/com/intellij/openapi/file/exclude/EnforcedPlainTextFileTypeManager.java
+++ b/platform/lang-impl/src/com/intellij/openapi/file/exclude/EnforcedPlainTextFileTypeManager.java
@@ -102,7 +102,7 @@ public final class EnforcedPlainTextFileTypeManager {
     });
   }
 
-  void ensureProjectFileUpToDate(@NotNull Project project) {
+  private void ensureProjectFileUpToDate(@NotNull Project project) {
     int i = ArrayUtil.indexOf(explicitlyMarkedProjects, project);
     ProjectPlainTextFileTypeManager projectPlainTextFileTypeManager = ProjectPlainTextFileTypeManager.getInstance(project);
     if (i == -1) {