diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 00b7c342..83c68ebd 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -15,11 +15,13 @@ build:
     script:
         - git submodule sync
         - git submodule update --init --recursive
+        - ls
         - mkdir -p coverage
         - mkdir -p build
         - cd build
         - cmake -DDRAMSYS_COVERAGE_CHECK=ON ../DRAMSys
         - make -j 10
+        - find . -name "*.o" -type f -delete
 
     artifacts:
         paths: