diff --git a/action.yml b/action.yml
index 251657e..3fe44f9 100644
--- a/action.yml
+++ b/action.yml
@@ -58,14 +58,14 @@ runs:
     - name: Send message
       run: |
         STATUS = ${{ inputs.status }}
-        if [[ STATUS == "success" ]]; then
+        if [[ "$STATUS" == "success" ]]; then
             STATUS="✅"
-        elif [[ STATUS == "failure" ]]; then
+        elif [[ "$STATUS" == "failure" ]]; then
             STATUS="❌"
-        elif [[ STATUS == "cancelled" ]]; then
+        elif [[ "$STATUS" == "cancelled" ]]; then
             STATUS="⚠️"
         fi
-        if [[ STATUS != '' ]]; then
+        if [[ "$STATUS" != '' ]]; then
           STATUS="$STATUS "
         fi
         CAPTION="$STATUS${{ inputs.caption }}"