1 files changed, 1 insertions, 0 deletions

diff --git a/defs/all.h b/defs/all.h
index d7873a1..681b34d 100644
--- a/defs/all.h
+++ b/defs/all.h
@@ -7,6 +7,7 @@
 #include <string.h>
 #include <locale.h>
 #include <stdbool.h>
+#include <ctype.h>
 
 #include "helper.h"