diff --git a/roles/gitlab_runner/templates/config.toml b/roles/gitlab_runner/templates/config.toml
index 8b78193..ea47a8e 100644
--- a/roles/gitlab_runner/templates/config.toml
+++ b/roles/gitlab_runner/templates/config.toml
@@ -50,7 +50,7 @@ check_interval = {{ gitlabrunner_check_interval }}
     ]
 {% endif %}
   [runners.cache]
-{% if gitlabrunner.cache_s3 %}
+{% if gitlabrunner.cache_s3 is defined %}
     Type = "s3"
     Shared = false
     [runners.cache.s3]