diff -r d63ceb45d88d -r 3554dac2991b libpurple/protocols/zephyr/internal.h
--- a/libpurple/protocols/zephyr/internal.h	Tue Aug 06 19:57:33 2019 -0400
+++ b/libpurple/protocols/zephyr/internal.h	Tue Sep 10 00:06:36 2019 -0400
@@ -1,5 +1,5 @@
-#ifndef __INTERNAL_H__
-#define __INTERNAL_H__
+#ifndef PURPLE_ZEPHYR_INTERNAL_H
+#define PURPLE_ZEPHYR_INTERNAL_H
 
 #include <sysdep.h>
 
@@ -118,5 +118,4 @@
 			    int (*pred) __P((ZNotice_t *, void *)), void *arg,
 			    int timeout));
 
-#endif /* __INTERNAL_H__ */
-
+#endif /* PURPLE_ZEPHYR_INTERNAL_H */