diff --git a/include/argz.h b/include/argz.h
index 0b4f8a0482..55c7f53a92 100644
--- a/include/argz.h
+++ b/include/argz.h
@@ -1,4 +1,4 @@
-f#ifndef _ARGZ_H
+#ifndef _ARGZ_H
 
 #include <string/argz.h>