diff --git a/deskutils/alarm-clock-applet/files/patch-src_alarm-applet.h b/deskutils/alarm-clock-applet/files/patch-src_alarm-applet.h
new file mode 100644
index 000000000000..b76c2cb2a05e
--- /dev/null
+++ b/deskutils/alarm-clock-applet/files/patch-src_alarm-applet.h
@@ -0,0 +1,11 @@
+--- src/alarm-applet.h.orig	2020-08-27 17:50:22 UTC
++++ src/alarm-applet.h
+@@ -46,7 +46,7 @@ G_BEGIN_DECLS
+ 
+ typedef struct _AlarmApplet AlarmApplet;
+ 
+-GHashTable *app_command_map;
++extern GHashTable *app_command_map;
+ 
+ void alarm_applet_label_update (AlarmApplet *applet);
+ void alarm_applet_clear_alarms (AlarmApplet *applet);