diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 2aa647b4c92e4baec799463f3e4d82972b938396..6577fae02a3216c11e55e7b6a88d9e7ad1d2b291 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -86,28 +86,28 @@ Dev Shell GHC 8.6.5 on Linux:
   needs:
   - Packages GHC 8.6.5 on Linux
   script:
-  - nix-shell --run "echo works" --arg enableLibraryProfiling true --fallback
+  - nix-shell --run "echo works" --fallback
 
 Dev Shell GHCJS 8.6 on Linux:
   stage: Linux Shell
   needs:
   - Packages GHCJS 8.6 on Linux
   script:
-  - nix-shell --run "echo works" --arg enableLibraryProfiling true --arg isJS true --fallback
+  - nix-shell --run "echo works" --arg isJS true --fallback
 
 Dev Shell GHC 8.6.5 on Darwin:
   stage: Darwin Shell
   needs:
   - Packages GHC 8.6.5 on Darwin
   script:
-  - nix-build --run "echo works" --arg enableLibraryProfiling true --argstr system x86_64-darwin --fallback
+  - nix-build --run "echo works" --argstr system x86_64-darwin --fallback
 
 Dev Shell GHCJS 8.6 on Darwin:
   stage: Darwin Shell
   needs:
   - Packages GHCJS 8.6 on Darwin
   script:
-  - nix-shell --run "echo works" --arg enableLibraryProfiling true --argstr system x86_64-darwin --arg isJS true --fallback
+  - nix-shell --run "echo works" --argstr system x86_64-darwin --arg isJS true --fallback
 
 Website:
   stage: Documentation