diff --git a/include/wx/osx/iphone/chkconf.h b/include/wx/osx/iphone/chkconf.h
index c4ddcfd1f2..7b55544335 100644
--- a/include/wx/osx/iphone/chkconf.h
+++ b/include/wx/osx/iphone/chkconf.h
@@ -284,10 +284,14 @@
 
 // iphone has a toolbar that is a regular UIView
 
+#ifdef wxOSX_USE_NATIVE_TOOLBAR
 #if wxOSX_USE_NATIVE_TOOLBAR
 #undef wxOSX_USE_NATIVE_TOOLBAR
 #define wxOSX_USE_NATIVE_TOOLBAR 0
 #endif
+#else
+#define wxOSX_USE_NATIVE_TOOLBAR 0
+#endif
 
 #if wxUSE_RIBBON
 #undef wxUSE_RIBBON