diff --git a/ethclient/ethclient_test.go b/ethclient/ethclient_test.go
index dd01c08f539e..2ee240d398b4 100644
--- a/ethclient/ethclient_test.go
+++ b/ethclient/ethclient_test.go
@@ -404,6 +404,9 @@ func testTransactionInBlockInterrupted(t *testing.T, client *rpc.Client) {
 	// Test tx in block interupted.
 	ctx, cancel := context.WithCancel(context.Background())
 	cancel()
+	if ctx.Err() != context.Canceled {
+		t.Fatal("context is not canceled")
+	}
 	tx, err := ec.TransactionInBlock(ctx, block.Hash(), 0)
 	if tx != nil {
 		t.Fatal("transaction should be nil")