diff --git a/scripts/update b/scripts/update
index 72f6bb3344..07821481b2 100755
--- a/scripts/update
+++ b/scripts/update
@@ -14,7 +14,10 @@ function has_upstream() {
 
 set -x -e
 
-$(dirname $0)/install-git-hooks
+scripts_dir="$(cd $(dirname $0) && pwd)"
+if [ -d "$(dirname "$scripts_dir")/.git" ] ; then
+  "$scripts_dir"/install-git-hooks
+fi
 
 has_upstream && git pull