--- a/libpurple/protocols/facebook/json.h	Tue Aug 06 19:57:33 2019 -0400
+++ b/libpurple/protocols/facebook/json.h	Tue Sep 10 00:06:36 2019 -0400
@@ -19,8 +19,8 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
  */
 
-#ifndef _FACEBOOK_JSON_H_
-#define _FACEBOOK_JSON_H_
+#ifndef PURPLE_FACEBOOK_JSON_H
+#define PURPLE_FACEBOOK_JSON_H
 
 /**
  * SECTION:json
@@ -482,4 +482,4 @@
 gchar *
 fb_json_values_next_str_dup(FbJsonValues *values, const gchar *defval);
 
-#endif /* _FACEBOOK_JSON_H_ */
+#endif /* PURPLE_FACEBOOK_JSON_H */