diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 42f09a0f682df13e4bae3ad9dae8e03352399b54..1e7ad0184948e8a8205ab474ffdbf6fe86db9c3a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -4,6 +4,8 @@
       - src/**/*
       - 3rdp/**/*
       - ctrl/text.dat
+      - xtrn/**/{GNUm,M}akefile
+      - xtrn/**/*.{c,h,cpp,hpp,mk}
 
 sbbs-linux:
   tags: [Linux]