diff --git a/diff-files.c b/diff-files.c
index d3b80a0..a3c523f 100644
--- a/diff-files.c
+++ b/diff-files.c
@@ -126,7 +126,7 @@
 			continue;
 		}
 		changed = ce_match_stat(ce, &st);
-		if (!changed)
+		if (!changed && detect_rename < 2)
 			continue;
 
 		oldmode = ntohl(ce->ce_mode);