diff --git a/.github/workflows/macos-builds.yml b/.github/workflows/macos-builds.yml
index b372225..4f483c6 100644
--- a/.github/workflows/macos-builds.yml
+++ b/.github/workflows/macos-builds.yml
@@ -25,4 +25,4 @@ jobs:
     - name: configure with g++-13
       run: ./configure CXX="g++-13" CPPFLAGS="-I$(brew --prefix)/include" LDFLAGS="-L$(brew --prefix)/lib"
     - name: make
-      run: make
+      run: make CXXFLAGS="-O3 -DNDEBUG -Wl,-ld_classic"