diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/blame/BlameGenerator.java b/org.eclipse.jgit/src/org/eclipse/jgit/blame/BlameGenerator.java
index 3b8e41eb1..5157364e1 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/blame/BlameGenerator.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/blame/BlameGenerator.java
@@ -945,6 +945,7 @@ private DiffEntry findRename(RevCommit parent, RevCommit commit,
 
 		treeWalk.setFilter(TreeFilter.ANY_DIFF);
 		treeWalk.reset(parent.getTree(), commit.getTree());
+		renameDetector.reset();
 		renameDetector.addAll(DiffEntry.scan(treeWalk));
 		for (DiffEntry ent : renameDetector.compute()) {
 			if (isRename(ent) && ent.getNewPath().equals(path.getPath()))