1 files changed, 1 insertions, 1 deletions

diff --git a/stdafx.h b/stdafx.h
index f864d3296c..dad652aad7 100644
--- a/stdafx.h
+++ b/stdafx.h
@@ -54,7 +54,7 @@
 #include <string.h>
 #include <stdarg.h>
 #include <assert.h>
-
+#include <ctype.h>
 
 
 #endif