diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 44483bbc2b3d9a5f8eb645d251e34dc1d88ecc6e..b625efc394b99e8d48ca9f60d4cdf82aaf1869e8 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -10,7 +10,7 @@ build:
   script:
     - mkdir build
     - cd build
-    - cmake .. -CMAKE_BUILD_TYPE=coverage
+    - cmake .. -DCMAKE_BUILD_TYPE=coverage
     - cmake --build . -- -j 4 
     - ctest -j4 -V >& test.log
     - ../Tools/coverage.sh