diff --git a/client/command.c b/client/command.c
index b97f9f28..1d618473 100644
--- a/client/command.c
+++ b/client/command.c
@@ -30,6 +30,16 @@
 
 static struct l_queue *command_families;
 
+void command_family_register(const struct command_family *family)
+{
+	l_queue_push_tail(command_families, (void *) family);
+}
+
+void command_family_unregister(const struct command_family *family)
+{
+	l_queue_remove(command_families, (void *) family);
+}
+
 void command_init(void)
 {
 	command_families = l_queue_new();
diff --git a/client/command.h b/client/command.h
index 75502cde..a496fedc 100644
--- a/client/command.h
+++ b/client/command.h
@@ -20,5 +20,12 @@
  *
  */
 
+struct command_family {
+	const char *name;
+};
+
+void command_family_register(const struct command_family *family);
+void command_family_unregister(const struct command_family *family);
+
 void command_init(void);
 void command_exit(void);