diff --git a/default.conf b/default.conf
index 95d58c3..6382262 100644
--- a/default.conf
+++ b/default.conf
@@ -1,6 +1,6 @@
 export CFLAGS="-Os -fstack-clash-protection -Wformat -Werror=format-security"
 export CXXFLAGS="-Os -fstack-clash-protection -Wformat -Werror=format-security"
-export CXXFLAGS="$CXXFLAGS -D_GLIBCXX_ASSERTIONS=1 -D_LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS -D_LIBCPP_ENABLE_HARDENED_MODE"
+export CXXFLAGS="$CXXFLAGS -D_GLIBCXX_ASSERTIONS=1 -D_LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS=1 -D_LIBCPP_ENABLE_HARDENED_MODE=1"
 export LDFLAGS="-Wl,--as-needed,-O1,--sort-common"
 export GOFLAGS="-buildmode=pie -modcacherw -trimpath -buildvcs=false"
 # Do note that these should work with at least GDC and LDC