diff --git a/setup.h.in b/setup.h.in
index 95fdf6c7d9..c7a3321653 100644
--- a/setup.h.in
+++ b/setup.h.in
@@ -200,15 +200,17 @@
 
 #define wxUSE_STREAMS       0
 
-#define wxUSE_STD_IOSTREAM  0
-
 #if defined(__DMC__) || defined(__WATCOMC__) \
         || (defined(_MSC_VER) && _MSC_VER < 1200)
-    #define wxUSE_STD_STRING  0
+    #define wxUSE_STD_DEFAULT  0
 #else
-    #define wxUSE_STD_STRING  0
+    #define wxUSE_STD_DEFAULT  0
 #endif
 
+#define wxUSE_STD_IOSTREAM  wxUSE_STD_DEFAULT
+
+#define wxUSE_STD_STRING  wxUSE_STD_DEFAULT
+
 #define wxUSE_PRINTF_POS_PARAMS      0