diff --git a/images/macos/provision/core/vsmac.sh b/images/macos/provision/core/vsmac.sh
index 1ba0f6039..89fa58184 100644
--- a/images/macos/provision/core/vsmac.sh
+++ b/images/macos/provision/core/vsmac.sh
@@ -3,7 +3,7 @@ source ~/utils/utils.sh
 source ~/utils/xamarin-utils.sh
 
 VSMAC_VERSION=$(get_toolset_value '.xamarin.vsmac')
-if [ VSMAC_VERSION == 'latest' ]; then
+if [ VSMAC_VERSION == "latest" ]; then
     VSMAC_VERSION=$(curl https://formulae.brew.sh/api/cask/visual-studio.json 2>/dev/null | jq .version)
 fi
 VSMAC_DOWNLOAD_URL=$(buildVSMacDownloadUrl $VSMAC_VERSION)