diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 704461c3..71c9c099 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,6 +1,7 @@
 variables:
   NO_DOCKER: 1
   BUILDKIT_HOST: tcp://earthly-buildkit:8372
+  EARTHLY_EXEC_CMD: "/bin/sh"
 
 earthly:
   stage: build