diff --git a/lntest/itest/lnd_test.go b/lntest/itest/lnd_test.go
index 90a8523b..096c6b7f 100644
--- a/lntest/itest/lnd_test.go
+++ b/lntest/itest/lnd_test.go
@@ -12760,6 +12760,10 @@ func testSendUpdateDisableChannel(net *lntest.NetworkHarness, t *harnessTest) {
 		},
 	)
 	mineBlocks(t, net, 1, 1)
+
+	// And finally, clean up the force closed channel by mining the
+	// sweeping transaction.
+	cleanupForceClose(t, net, net.Alice, chanPointAliceCarol)
 }
 
 // testAbandonChannel abandones a channel and asserts that it is no