diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -11,5 +11,5 @@
 build-release:
   stage: build
   script:
-    - dotnet build isometric-park-fna-core.sln -f netcoreapp3.1 -C Release
+    - dotnet build isometric-park-fna-core.sln -f netcoreapp3.1 -c Release
     - cd isometric-park-fna/bin/Release/netcoreapp3.1; LD_LIBRARY_PATH="../../../fnalibs/lib64" DYLD_LIBRARY_PATH="../../../../fnalibs/osx" dotnet ./isometric-park-fna.dll