diff --git a/man3/strcmp.3 b/man3/strcmp.3
index 13ae2fde0..dd187be22 100644
--- a/man3/strcmp.3
+++ b/man3/strcmp.3
@@ -170,6 +170,10 @@ $ \fB./string_comp ABC AB 2\fP
 .SS Program source
 \&
 .EX
+/* string_comp.c
+
+   Licensed under GNU General Public License v2 or later.
+*/
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>