diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 67681e6..875f578 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -12,16 +12,16 @@ cache:
 build:
   stage: build
   script:
-    - mvn $MAVEN_CLI_OPTS compile
+    - "mvn {{MAVEN_CLI_OPTS}} compile"
 
 test:
   stage: test
   script:
-    - mvn $MAVEN_CLI_OPTS test
+    - "mvn {{MAVEN_CLI_OPTS}} test"
 
 deploy:
   stage: deploy
   script:
-    - mvn $MAVEN_CLI_OPTS deploy
+    - "mvn {{MAVEN_CLI_OPTS}} deploy"
   only:
     - master
\ No newline at end of file