diff --git a/clock.c b/clock.c
index b3e5096..28e9e52 100644
--- a/clock.c
+++ b/clock.c
@@ -85,7 +85,7 @@ static int cid_eq(struct ClockIdentity *a, struct ClockIdentity *b)
 	return 0 == memcmp(a, b, sizeof(*a));
 }
 
-static void clock_destroy(struct clock *c)
+void clock_destroy(struct clock *c)
 {
 	int i;
 	for (i = 0; i < c->nports; i++) {
diff --git a/clock.h b/clock.h
index 92c61d4..56eac92 100644
--- a/clock.h
+++ b/clock.h
@@ -77,6 +77,12 @@ struct clock *clock_create(int phc_index, struct interface *iface, int count,
  */
 struct dataset *clock_default_ds(struct clock *c);
 
+/**
+ * Free all of the resources associated with a clock.
+ * @param c  The clock instance.
+ */
+void clock_destroy(struct clock *c);
+
 /**
  * Obtain the domain number from a clock's default data set.
  * @param c  The clock instance.