fix error message if invalid flag is specified (Aaron Sethman) (Closes: #65)
diff --git a/extensions/libipt_tcp.c b/extensions/libipt_tcp.c
index 1ff8f12..37613ac 100644
--- a/extensions/libipt_tcp.c
+++ b/extensions/libipt_tcp.c
@@ -122,7 +122,7 @@
 		}
 		if (i == sizeof(tcp_flag_names)/sizeof(struct tcp_flag_names))
 			exit_error(PARAMETER_PROBLEM,
-				   "Unknown TCP flag `%s'", buffer);
+				   "Unknown TCP flag `%s'", ptr);
 		}
 
 	free(buffer);