diff --git a/commands_test.go b/commands_test.go
index 779b2d9..749c6a9 100644
--- a/commands_test.go
+++ b/commands_test.go
@@ -44,6 +44,11 @@ func TestSequentially(t *testing.T) {
 			cmds:     []Cmd{nilReturnCmd, nilReturnCmd},
 			expected: nil,
 		},
+		{
+			name:     "null cmds",
+			cmds:     []Cmd{nil, nil},
+			expected: nil,
+		},
 		{
 			name: "one error",
 			cmds: []Cmd{