diff --git a/platform/vcs-impl/testSrc/com/intellij/testFramework/vcs/MockVcsContextFactory.java b/platform/vcs-impl/testSrc/com/intellij/testFramework/vcs/MockVcsContextFactory.java
index 16dde9fe003f..1e825f2e2d6e 100644
--- a/platform/vcs-impl/testSrc/com/intellij/testFramework/vcs/MockVcsContextFactory.java
+++ b/platform/vcs-impl/testSrc/com/intellij/testFramework/vcs/MockVcsContextFactory.java
@@ -38,7 +38,7 @@ public class MockVcsContextFactory extends VcsContextFactoryImpl {
   }
 
   private class CustomFileSystemFilePath extends LocalFilePath {
-    public CustomFileSystemFilePath(String path, boolean directory) {
+    public CustomFileSystemFilePath(@NotNull String path, boolean directory) {
       super(path, directory);
     }