diff --git a/src/util/vircgroup.c b/src/util/vircgroup.c
index a0904d6591..b881c8c2b1 100644
--- a/src/util/vircgroup.c
+++ b/src/util/vircgroup.c
@@ -1148,7 +1148,6 @@ virCgroupAddTaskStrController(virCgroupPtr group,
  *
  * @src_group: The source cgroup where all tasks are removed from
  * @dest_group: The destination where all tasks are added to
- * @controller: The cgroup controller to be operated on
  *
  * Returns: 0 on success or -1 on failure
  */