diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 40952712cd8962d1ca9aa146e4fe5c29aa1b4903..b7c8d9efa50812ed98f9ec66a32ed59af33948be 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -4,7 +4,7 @@ buildjob:
   tags:
   - coq
   script:
-  - make -j8 TIMED=y | tee /dev/stdout | egrep "[a-zA-Z0-9-_/]+ \(user: [0-9]" > build-time.txt
+  - "make -j8 TIMED=y | tee /dev/stdout | egrep '[a-zA-Z0-9-_/]+ \(user: [0-9]' > build-time.txt"
   artifacts:
     paths:
     - build-time.txt