diff --git a/configure/os/CONFIG.win32-x86-mingw.win32-x86-mingw b/configure/os/CONFIG.win32-x86-mingw.win32-x86-mingw
index a4f3f9e53..8309f8b45 100644
--- a/configure/os/CONFIG.win32-x86-mingw.win32-x86-mingw
+++ b/configure/os/CONFIG.win32-x86-mingw.win32-x86-mingw
@@ -26,7 +26,4 @@ LOADABLE_SHRLIB_LDFLAGS = -shared -Wl,--out-implib,$(LIB_PREFIX)$*$(LIB_SUFFIX)
 # Override linking with gcc library from CONFIG.gnuCommon
 GNU_LDLIBS_YES =
 
-OPT_CFLAGS_NO = -g
-OPT_CXXFLAGS_NO = -g
-
 OP_SYS_LDLIBS = -lws2_32