diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 6c542fbfbd8939fc6fc97adbc96e9863633fe022..d260ab3e8c521ff64353220579c33ce7273a3fb5 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -43,7 +43,7 @@ ruby_2.4:
     - master
   script:
     - ruby -v
-    - find . -name "*\.rb" -print0 | xargs -I {} -0 -n1 sh -c "ls {}; ruby --dev -c {}"
+    - find . -name "*\.rb" -print0 | xargs -I {} -0 -n1 sh -c "ls {}; ruby -c {}"
 
 jruby_1.7:
   image: jruby:1.7
@@ -65,7 +65,7 @@ jruby_9.1:
     - master
   script:
     - ruby -v
-    - find . -name "*\.rb" -print0 | xargs -I {} -0 -n1 sh -c "ls {}; ruby -c {}"
+    - find . -name "*\.rb" -print0 | xargs -I {} -0 -n1 sh -c "ls {}; ruby --dev -c {}"
 
 rubocop:
   stage: linting