diff --git a/git-repack.sh b/git-repack.sh
index bf0bdcf4ff..acb78ba86b 100755
--- a/git-repack.sh
+++ b/git-repack.sh
@@ -99,7 +99,7 @@ then
 	# We know $existing are all redundant.
 	if [ -n "$existing" ]
 	then
-		sync
+		sync 2> /dev/null
 		( cd "$PACKDIR" &&
 		  for e in $existing
 		  do