diff --git a/sys/kern/subr_gtaskqueue.c b/sys/kern/subr_gtaskqueue.c
index 14677a16454..6a5cc65232e 100644
--- a/sys/kern/subr_gtaskqueue.c
+++ b/sys/kern/subr_gtaskqueue.c
@@ -987,3 +987,9 @@ taskqgroup_config_gtask_init(void *ctx, struct grouptask *gtask, gtask_fn_t *fn,
 	GROUPTASK_INIT(gtask, 0, fn, ctx);
 	taskqgroup_attach(qgroup_config, gtask, gtask, -1, name);
 }
+
+void
+taskqgroup_config_gtask_deinit(struct grouptask *gtask)
+{
+	taskqgroup_detach(qgroup_config, gtask);
+}
diff --git a/sys/sys/gtaskqueue.h b/sys/sys/gtaskqueue.h
index abebc551657..e8cfef04426 100644
--- a/sys/sys/gtaskqueue.h
+++ b/sys/sys/gtaskqueue.h
@@ -63,6 +63,7 @@ void	taskqgroup_destroy(struct taskqgroup *qgroup);
 int	taskqgroup_adjust(struct taskqgroup *qgroup, int cnt, int stride);
 void	taskqgroup_config_gtask_init(void *ctx, struct grouptask *gtask, gtask_fn_t *fn,
 		const char *name);
+void	taskqgroup_config_gtask_deinit(struct grouptask *gtask);
 
 #define TASK_ENQUEUED			0x1
 #define TASK_SKIP_WAKEUP		0x2