diff --git a/include/wx/defs.h b/include/wx/defs.h
index f5aedcae5b..837900f660 100644
--- a/include/wx/defs.h
+++ b/include/wx/defs.h
@@ -883,17 +883,20 @@ inline void *wxUIntToPtr(wxUIntPtr p)
 #elif defined(__BORLANDC__) && defined(__WIN32__) && (__BORLANDC__ >= 0x520)
     #define wxLongLong_t __int64
     #define wxLongLongSuffix i64
-    #define wxLongLongFmtSpec _T("Ld")
+    #define wxLongLongFmtSpec _T("L")
 #elif (defined(__WATCOMC__) && (defined(__WIN32__) || defined(__DOS__)))
       #define wxLongLong_t __int64
       #define wxLongLongSuffix i64
-      #define wxLongLongFmtSpec _T("Ld")
+      #define wxLongLongFmtSpec _T("L")
 #elif defined(__DIGITALMARS__)
       #define wxLongLong_t __int64
       #define wxLongLongSuffix LL
       #define wxLongLongFmtSpec _T("ll")
+#elif defined(__MINGW32__)
+    #define wxLongLong_t long long
+    #define wxLongLongSuffix ll
+    #define wxLongLongFmtSpec _T("I64")
 #elif (defined(SIZEOF_LONG_LONG) && SIZEOF_LONG_LONG >= 8)  || \
-        defined(__MINGW32__) || \
         defined(__GNUC__) || \
         defined(__CYGWIN__) || \
         defined(__WXMICROWIN__) || \