diff --git a/advanced/Scripts/update.sh b/advanced/Scripts/update.sh
index 2ef136a9..4281d69f 100755
--- a/advanced/Scripts/update.sh
+++ b/advanced/Scripts/update.sh
@@ -41,7 +41,7 @@ GitCheckUpdateAvail() {
 
   # @ alone is a shortcut for HEAD. Older versions of git
   # need @{0}
-  LOCAL="$(git rev-parse @{0})"
+  LOCAL="$(git rev-parse "@{0}")"
 
   # The suffix @{upstream} to a branchname
   # (short form <branchname>@{u}) refers
@@ -50,7 +50,7 @@ GitCheckUpdateAvail() {
   # (configured with branch.<name>.remote and
   # branch.<name>.merge). A missing branchname
   # defaults to the current one.
-  REMOTE="$(git rev-parse @{upstream})"
+  REMOTE="$(git rev-parse "@{upstream}")"
 
   if [[ ${#LOCAL} == 0 ]]; then
     echo "::: Error: Local revision could not be obtained, ask Pi-hole support."