--- ./hstring.h	2003-08-31 17:23:59.000000000 +0000
+++ ../hstring.h	2018-03-10 23:20:36.668108131 +0000
@@ -1,4 +1,4 @@
-#ifndef HPING_HSTRNIG_H
+#ifndef HPING_HSTRING_H
 #define HPING_HSTRING_H
 
 int strisnum(char *s);