diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 48b28040516af86240fc729991a18202ede41ae5..61aa91ec7b2dc440ed38920d1b1e7b6964e353aa 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -72,7 +72,7 @@ build-coq.8.19.0-dune:
   <<: *template
   <<: *branches_and_mr
   variables:
-    OPAM_PINS: "coq version 8.19.0 dune   version 3.15.2"
+    OPAM_PINS: "coq version 8.19.0   dune version 3.15.2"
     MAKE_TARGET: "dune"
 
 # The oldest version runs in MRs, without name mangling.