diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index 89e47d3..0c571df 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -21,8 +21,8 @@ jobs:
 
       - name: Configure
         env:
-          CXXFLAGS: --coverage -fprofile-abs-path -g -O0
-          CFLAGS: --coverage -fprofile-abs-path -g -O0
+          CXXFLAGS: --coverage -fprofile-abs-path -g -O1
+          CFLAGS: --coverage -fprofile-abs-path -g -O1
           LDFLAGS: --coverage
           CC: gcc-13
           CXX: g++-13