diff --git a/configure.ac b/configure.ac
index e4614a1..5908e1a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -28,7 +28,7 @@ OPT_LEVEL=2
 if test "$GCC" = "yes"
 then
         WARNINGS="-Wall -Wdeclaration-after-statement -Wredundant-decls"
+        CFLAGS="$WARNINGS $orig_CFLAGS"
-        CFLAGS="-O$OPT_LEVEL -g $WARNINGS $orig_CFLAGS"
 fi
 
 PKG_CHECK_MODULES(SDL, [sdl2 >= 2.0.7])