diff --git a/.github/workflows/auto_tag.yml b/.github/workflows/auto_tag.yml
index f140cf2182..529bd794a5 100644
--- a/.github/workflows/auto_tag.yml
+++ b/.github/workflows/auto_tag.yml
@@ -11,6 +11,7 @@ on:
     - tests/**/*
     - util/**/*
     - platforms/**/*
+    - builddefs/**/*
     - Makefile
     - '*.mk'