diff --git a/.github/workflows/shellcheck.yml b/.github/workflows/shellcheck.yml
index 41cbebc8..de9783c0 100644
--- a/.github/workflows/shellcheck.yml
+++ b/.github/workflows/shellcheck.yml
@@ -1,6 +1,7 @@
 name: Differential ShellCheck
 
 on:
+  workflow_dispatch:
   push:
     branches:
       - main