diff --git a/.github/workflows/build_rocky.yml b/.github/workflows/build_rocky.yml
index d43fa2eca9..6bc92d4fb6 100644
--- a/.github/workflows/build_rocky.yml
+++ b/.github/workflows/build_rocky.yml
@@ -57,7 +57,7 @@ jobs:
         shell: bash
         run: |
           set -o pipefail
-          CXXFLAGS="-O3" CFLAGS="-O3 ${DARWIN_C_SOURCE}" ADD_COMMIT_SHA=1 BUILD_CFG=Release python3 ./nix/build-all.py -v --diskcleanup 2>&1 | tee build.log
+          ADD_COMMIT_SHA=1 BUILD_CFG=RelWithDebInfo python3 ./nix/build-all.py -v --diskcleanup 2>&1 | tee build.log
 
       - name: Upload Build Logs
         if: always()