diff --git a/src/core/cgroup.h b/src/core/cgroup.h
index ffd39cda40..413b00f5f3 100644
--- a/src/core/cgroup.h
+++ b/src/core/cgroup.h
@@ -339,8 +339,8 @@ uint64_t cgroup_context_cpu_weight(CGroupContext *c, ManagerState state);
 usec_t cgroup_cpu_adjust_period(usec_t period, usec_t quota, usec_t resolution, usec_t max_period);
 
 void cgroup_context_init(CGroupContext *c);
-int cgroup_context_copy(CGroupContext *dst, const CGroupContext *src);
 void cgroup_context_done(CGroupContext *c);
+
 void cgroup_context_dump(Unit *u, FILE* f, const char *prefix);
 void cgroup_context_dump_socket_bind_item(const CGroupSocketBindItem *item, FILE *f);
 void cgroup_context_dump_socket_bind_items(const CGroupSocketBindItem *items, FILE *f);