diff --git a/.github/workflows/pr-verifier.yaml b/.github/workflows/pr-verifier.yaml
index 5faa8a9d..c9cc823d 100644
--- a/.github/workflows/pr-verifier.yaml
+++ b/.github/workflows/pr-verifier.yaml
@@ -2,7 +2,8 @@ name: Check PR Title
 permissions: {}
 
 on:
-  workflow_call:
+  pull_request:
+    types: [opened, edited, synchronize, reopened]
 
 jobs:
   check-title:
@@ -12,13 +13,14 @@ jobs:
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
       - name: Validate PR Title
+        env:
+          PR_TITLE: ${{ github.event.pull_request.title }}
         run: |
-          WIP_REGEX="^\W?WIP\W"
-          TAG_REGEX="^\[[[:alnum:]\._-]*\]"
-          PR_TITLE="${{ github.event.pull_request.title }}"
+          WIP_REGEX='^\W?WIP\W'
+          TAG_REGEX='^\[[[:alnum:]\._-]*\]'
 
           # Trim WIP and tags from title
-          trimmed_title=$(echo "$PR_TITLE" | sed -E "s/$WIP_REGEX//" | sed -E "s/$TAG_REGEX//" | xargs)
+          trimmed_title=$(echo "${PR_TITLE}" | sed -E "s/$WIP_REGEX//" | sed -E "s/$TAG_REGEX//" | xargs)
 
           # Normalize common emojis in text form to actual emojis
           trimmed_title=$(echo "$trimmed_title" | sed -E "s/:warning:/⚠/g")