diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 517702e9ccfbb0f7b619e5220dd984c183e34d40..1f30d7e91d109b4cc2a524e57e1e8ee6100f7413 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -19,6 +19,11 @@ before_script:
       *-clang) ln -s /usr/lib/llvm4/lib/LLVMgold.so /usr/lib/LLVMgold.so;;
       *) ;;
     esac
+  - echo USE_RAMDISK=0 >> build.conf
+  - case "$CI_BUILD_NAME" in
+      *-clang) echo USE_LTO=1 >> build.conf;;
+      *) echo USE_LTO=0 >> build.conf;;
+    esac
 
 
 #==========  Stage build  ==========