diff --git a/riscos/hotlist.c b/riscos/hotlist.c
index a01fb0307..e60dc8464 100644
--- a/riscos/hotlist.c
+++ b/riscos/hotlist.c
@@ -197,6 +197,23 @@ void ro_gui_hotlist_postinitialise(void)
 
 void ro_gui_hotlist_open(void)
 {
+	os_error	*error;
+	char		command[2048];
+
+	if (option_external_hotlists && option_external_hotlist_app != NULL &&
+			*option_external_hotlist_app != '\0') {
+		snprintf(command, sizeof(command), "Filer_Run %s",
+				option_external_hotlist_app);
+		error = xos_cli(command);
+
+		if (error == NULL)
+			return;
+
+		LOG(("xos_cli: 0x%x: %s", error->errnum, error->errmess));
+		warn_user("Failed to launch external hotlist: %s",
+				error->errmess);
+	}
+
 	tree_set_redraw(ro_treeview_get_tree(hotlist_window.tv), true);
 
 	ro_gui_hotlist_toolbar_update_buttons();
diff --git a/riscos/options.h b/riscos/options.h
index a83644f72..463a6fa56 100644
--- a/riscos/options.h
+++ b/riscos/options.h
@@ -65,6 +65,7 @@ extern char *option_theme_save;
 extern bool option_thumbnail_iconise;
 extern bool option_interactive_help;
 extern bool option_external_hotlists;
+extern char *option_external_hotlist_app;
 
 #define EXTRA_OPTION_DEFINE \
 bool option_use_mouse_gestures = false;\
@@ -103,7 +104,8 @@ char *option_theme_path = 0; \
 char *option_theme_save = 0; \
 bool option_thumbnail_iconise = true; \
 bool option_interactive_help = true; \
-bool option_external_hotlists = false;
+bool option_external_hotlists = false; \
+char *option_external_hotlist_app = 0;
 
 #define EXTRA_OPTION_TABLE \
 { "use_mouse_gestures",     OPTION_BOOL,    &option_use_mouse_gestures },\
@@ -142,6 +144,7 @@ bool option_external_hotlists = false;
 { "theme_save",             OPTION_STRING,  &option_theme_save }, \
 { "thumbnail_iconise",      OPTION_BOOL,    &option_thumbnail_iconise }, \
 { "interactive_help",       OPTION_BOOL,    &option_interactive_help }, \
-{ "external_hotlists",      OPTION_BOOL,    &option_external_hotlists }
+{ "external_hotlists",      OPTION_BOOL,    &option_external_hotlists }, \
+{ "external_hotlist_app",   OPTION_STRING,  &option_external_hotlist_app }
 
 #endif