diff --git a/ci/github-script/merge.js b/ci/github-script/merge.js
index fe4f90ff3baa..ee861e21187d 100644
--- a/ci/github-script/merge.js
+++ b/ci/github-script/merge.js
@@ -97,7 +97,7 @@ function hasMergeCommand(body) {
   return (body ?? '')
     .replace(/<!--.*?-->/gms, '')
     .replace(/(^`{3,})[^`].*?\1/gms, '')
-    .match(/^@NixOS\/nixpkgs-merge-bot merge\s*$/m)
+    .match(/^@NixOS\/nixpkgs-merge-bot merge\s*$/im)
 }
 
 async function handleMergeComment({ github, body, node_id, reaction }) {