1 files changed, 1 insertions, 0 deletions

diff --git a/util.c b/util.c
index 5150c82..9c08c5a 100644
--- a/util.c
+++ b/util.c
@@ -20,6 +20,7 @@
 
 #include <stdio.h>
 #include <string.h>
+#include <ctype.h>
 
 #define LOG_TAG "RIL-UTIL"
 #include <utils/Log.h>