diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index cf3159107c62fbabda5dd7b7a8d26f8d4bd75e2b..7dd6c5ba14785e925d36ada0fb110d25cacc52d6 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -152,7 +152,7 @@ build_poiseuille_test_container:
       - Containers/PoiseuilleTestContainer.sif
 
   script:
-    - singularity build Containers/PoiseuilleTestContainer.sif Python/SlurmTests/poiseuille/PoiseuilleTestContainer.def
+    - singularity build "Containers/PoiseuilleTestContainer.sif" "Python/SlurmTests/poiseuille/PoiseuilleTestContainer.def"
 
 ###############################################################################
 ##                                Tests                                      ##