diff --git a/lib/wx/configure b/lib/wx/configure
index 6cb5ce03b48c..9789690d8570 100755
--- a/lib/wx/configure
+++ b/lib/wx/configure
@@ -4415,7 +4415,7 @@ esac
 
 case $host_os in
     darwin*)
-	LDFLAGS="$MAC_MIN -bundle -flat_namespace -undefined warning -fPIC $LDFLAGS"
+	LDFLAGS="$MAC_MIN -bundle -twolevel_namespace -undefined warning -fPIC $LDFLAGS"
 	# Check sizof_void_p as future will hold 64bit MacOS wx
 	if test $ac_cv_sizeof_void_p = 4; then
 	    LDFLAGS="-m32 $LDFLAGS"
diff --git a/lib/wx/configure.in b/lib/wx/configure.in
index 4d1e331ea3f1..ecb3b9db2109 100644
--- a/lib/wx/configure.in
+++ b/lib/wx/configure.in
@@ -199,7 +199,7 @@ AC_SUBST(OBJC_CFLAGS)
 
 case $host_os in
     darwin*)
-	LDFLAGS="$MAC_MIN -bundle -flat_namespace -undefined warning -fPIC $LDFLAGS"
+	LDFLAGS="$MAC_MIN -bundle -twolevel_namespace -undefined warning -fPIC $LDFLAGS"
 	# Check sizof_void_p as future will hold 64bit MacOS wx
 	if test $ac_cv_sizeof_void_p = 4; then
 	    LDFLAGS="-m32 $LDFLAGS"