diff --git a/.github/workflows/helm-diff.yaml b/.github/workflows/helm-diff.yaml
index b8eef989c..4b98ec2ab 100644
--- a/.github/workflows/helm-diff.yaml
+++ b/.github/workflows/helm-diff.yaml
@@ -1,26 +1,18 @@
 name: Generate Helm Diffs for PR
 
 on:
-  workflow_dispatch:
-    inputs:
-      pr_number:
-        description: 'PR number to generate diff for'
-        required: true
-        type: string
   issue_comment:
     types: [created]
 
 jobs:
   helm-diff:
-    if: |
-      github.event_name == 'workflow_dispatch' ||
-      (github.event.issue.pull_request && contains(github.event.comment.body, '/helm-diff'))
+    if: ${{ github.event.issue.pull_request && contains(github.event.comment.body, '/helm-diff') }}
     runs-on: ubuntu-latest
     steps:
       - name: Checkout PR Code
         uses: actions/checkout@v4
         with:
-          ref: refs/pull/${{ github.event_name == 'workflow_dispatch' ? inputs.pr_number : github.event.issue.number }}/head
+          ref: refs/pull/${{ github.event.issue.number }}/head
 
       - name: Set up Helm
         uses: azure/setup-helm@v1
@@ -155,9 +147,8 @@ jobs:
             await github.rest.issues.createComment({
               owner: context.repo.owner,
               repo: context.repo.repo,
-              issue_number: Number(process.env.PR_NUMBER),
+              issue_number: ${{ github.event.issue.number }},
               body: process.env.DIFF
             });
         env:
-          PR_NUMBER: ${{ inputs.pr_number }}
           DIFF: ${{ steps.generate-diff.outputs.diff }}