diff --git a/Source/Platform.h b/Source/Platform.h
index e3135f9a..e9e95a0a 100644
--- a/Source/Platform.h
+++ b/Source/Platform.h
@@ -252,7 +252,7 @@ typedef DWORDLONG ULONGLONG,*PULONGLONG;
 #endif
 
 #ifndef BIF_NEWDIALOGSTYLE
-#  define BIF_NEWDIALOGSTYLE 0x0040
+#  define BIF_NEWDIALOGSTYLE 0x00000040
 #endif
 
 #ifndef TVITEM