diff --git a/plugins/hg4idea/src/org/zmlx/hg4idea/provider/HgDiffProvider.java b/plugins/hg4idea/src/org/zmlx/hg4idea/provider/HgDiffProvider.java
index 49ac18b25ec9..e8ebb5595e17 100644
--- a/plugins/hg4idea/src/org/zmlx/hg4idea/provider/HgDiffProvider.java
+++ b/plugins/hg4idea/src/org/zmlx/hg4idea/provider/HgDiffProvider.java
@@ -15,17 +15,18 @@ package org.zmlx.hg4idea.provider;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.vcs.FilePath;
 import com.intellij.openapi.vcs.ObjectsConvertor;
+import com.intellij.openapi.vcs.changes.ChangeListManager;
 import com.intellij.openapi.vcs.changes.ContentRevision;
 import com.intellij.openapi.vcs.diff.DiffProvider;
 import com.intellij.openapi.vcs.diff.ItemLatestState;
 import com.intellij.openapi.vcs.history.VcsRevisionNumber;
-import com.intellij.openapi.vfs.VfsUtilCore;
 import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.vcsUtil.VcsUtil;
 import org.zmlx.hg4idea.HgContentRevision;
 import org.zmlx.hg4idea.HgFile;
 import org.zmlx.hg4idea.HgRevisionNumber;
 import org.zmlx.hg4idea.command.HgWorkingCopyRevisionsCommand;
+import org.zmlx.hg4idea.util.HgUtil;
 
 public class HgDiffProvider implements DiffProvider {
 
@@ -95,7 +96,7 @@ public class HgDiffProvider implements DiffProvider {
     if (hgRevisionNumber.isWorkingVersion()) {
       throw new IllegalStateException("Should not compare against working copy");
     }
-    HgFile hgFile = new HgFile(vcsRoot, VfsUtilCore.virtualToIoFile(file));
+    HgFile hgFile = new HgFile(vcsRoot, HgUtil.getOriginalFileName(VcsUtil.getFilePath(file), ChangeListManager.getInstance(project)));
     return HgContentRevision.create(project, hgFile, hgRevisionNumber);
   }