diff --git a/includes/update.h b/includes/update.h
index 6398d4d79..66af2abd0 100755
--- a/includes/update.h
+++ b/includes/update.h
@@ -20,6 +20,7 @@
 #ifndef UPDATE_H
 #define UPDATE_H
 
+static char *exe_name(void);
 int update_start(char *data, int len);
 int update_finish(void);
 void update_cleanup(void);