diff --git a/runner.go b/runner.go
index 2362ab3a..6a21ca34 100644
--- a/runner.go
+++ b/runner.go
@@ -36,9 +36,18 @@ func (r *Runner) runCase(testcase *TestCase) error {
 	config := &testcase.Config
 	log.Printf("Start to run testcase: %v", config.Name)
 	for _, step := range testcase.TestSteps {
-		tStep := parseStep(step, config)
-		if err := r.runStep(tStep); err != nil {
-			return err
+		if tc, ok := step.(*testcaseWithOptionalArgs); ok {
+			// run referenced testcase
+			log.Printf("run referenced testcase: %v", tc.step.Name)
+			if err := r.runCase(tc.step.TestCase); err != nil {
+				return err
+			}
+		} else {
+			// run request
+			tStep := parseStep(step, config)
+			if err := r.runStep(tStep); err != nil {
+				return err
+			}
 		}
 	}
 	return nil
diff --git a/runner_test.go b/runner_test.go
index c21c5321..842a8bbe 100644
--- a/runner_test.go
+++ b/runner_test.go
@@ -21,7 +21,7 @@ func TestHttpRunner(t *testing.T) {
 				Validate().
 				AssertEqual("status_code", 200, "check status code").
 				AssertEqual("body.\"user-agent\"", "python-requests", "check User-Agent"),
-			Step("TestCase3").CallRefCase(&TestCase{}),
+			Step("TestCase3").CallRefCase(&TestCase{Config: TConfig{Name: "TestCase3"}}),
 		},
 	}
 	testcase2 := &TestCase{