diff --git a/ci/install-butler-on-alpine.sh b/ci/install-butler-on-alpine.sh
index d26155d4915e6f68effb84dbe9ad68247148b524..65274903b8100e1311810526aee43c416ba53e79 100755
--- a/ci/install-butler-on-alpine.sh
+++ b/ci/install-butler-on-alpine.sh
@@ -32,4 +32,4 @@ chmod +x /usr/local/bin/butler
 rm butler.zip
 butler -V
 
-# NOTE: sometimes this fails with error `runtime/cgo: pthread_create failed: Operation not permitted` and I'm not sure why. A strict Docker's seccomp policy would explain this, but then why is it flaky?!
+# NOTE: sometimes this fails with error `runtime/cgo: pthread_create failed: Operation not permitted` and I'm not sure why. A strict Docker's seccomp policy would explain this, but then why is it flaky?! **UPDATE**: it appears that I was right and setting `tags: [commul]` selects only runners with extended policies.