diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 36c7461a..97dd8cd0 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Release History
 
-## 3.0.6 (2020-05-25)
+## 3.0.6 (2020-05-27)
 
 **Added**
 
@@ -9,6 +9,7 @@
 **Fixed**
 
 - fix: ensure converted python file in utf-8 encoding
+- fix: duplicate running referenced testcase
 
 ## 3.0.5 (2020-05-22)
 
diff --git a/examples/postman_echo/debugtalk.py b/examples/postman_echo/debugtalk.py
index d0502409..af8b22eb 100644
--- a/examples/postman_echo/debugtalk.py
+++ b/examples/postman_echo/debugtalk.py
@@ -10,6 +10,4 @@ def sum_two(m, n):
 
 
 def get_variables():
-    return {
-        "foo1": "session_bar1"
-    }
+    return {"foo1": "session_bar1"}
diff --git a/examples/postman_echo/request_methods/demo_testsuite_yml/request_with_testcase_reference_test.py b/examples/postman_echo/request_methods/demo_testsuite_yml/request_with_testcase_reference_test.py
index c3755910..bf82fd58 100644
--- a/examples/postman_echo/request_methods/demo_testsuite_yml/request_with_testcase_reference_test.py
+++ b/examples/postman_echo/request_methods/demo_testsuite_yml/request_with_testcase_reference_test.py
@@ -9,7 +9,7 @@ sys.path.insert(0, os.getcwd())
 from httprunner import HttpRunner, TConfig, TStep
 
 from examples.postman_echo.request_methods.request_with_functions_test import (
-    TestCaseRequestWithFunctions,
+    TestCaseRequestWithFunctions as RequestWithFunctions,
 )
 
 
@@ -29,7 +29,7 @@ class TestCaseRequestWithTestcaseReference(HttpRunner):
             **{
                 "name": "request with functions",
                 "variables": {"foo1": "override_bar1"},
-                "testcase": TestCaseRequestWithFunctions,
+                "testcase": RequestWithFunctions,
             }
         ),
     ]
diff --git a/examples/postman_echo/request_methods/request_with_testcase_reference_test.py b/examples/postman_echo/request_methods/request_with_testcase_reference_test.py
index 70f3139c..213fc746 100644
--- a/examples/postman_echo/request_methods/request_with_testcase_reference_test.py
+++ b/examples/postman_echo/request_methods/request_with_testcase_reference_test.py
@@ -9,7 +9,7 @@ sys.path.insert(0, os.getcwd())
 from httprunner import HttpRunner, TConfig, TStep
 
 from examples.postman_echo.request_methods.request_with_functions_test import (
-    TestCaseRequestWithFunctions,
+    TestCaseRequestWithFunctions as RequestWithFunctions,
 )
 
 
@@ -29,7 +29,7 @@ class TestCaseRequestWithTestcaseReference(HttpRunner):
             **{
                 "name": "request with functions",
                 "variables": {"foo1": "override_bar1"},
-                "testcase": TestCaseRequestWithFunctions,
+                "testcase": RequestWithFunctions,
             }
         ),
     ]
diff --git a/httprunner/ext/make/__init__.py b/httprunner/ext/make/__init__.py
index 11133489..dcfa3ade 100644
--- a/httprunner/ext/make/__init__.py
+++ b/httprunner/ext/make/__init__.py
@@ -95,9 +95,8 @@ def convert_testcase_path(testcase_path: Text) -> Tuple[Text, Text]:
 
     # convert title case, e.g. request_with_variables => RequestWithVariables
     name_in_title_case = file_name.title().replace("_", "")
-    testcase_cls_name = f"TestCase{name_in_title_case}"
 
-    return testcase_python_path, testcase_cls_name
+    return testcase_python_path, name_in_title_case
 
 
 def __format_pytest_with_black(python_paths: List[Text]) -> NoReturn:
@@ -163,11 +162,13 @@ def __make_testcase(testcase: Dict, dir_path: Text = None) -> NoReturn:
         ref_testcase_python_path = ref_testcase_python_path[len(os.getcwd()) + 1 :]
         ref_module_name, _ = os.path.splitext(ref_testcase_python_path)
         ref_module_name = ref_module_name.replace(os.sep, ".")
-        imports_list.append(f"from {ref_module_name} import {ref_testcase_cls_name}")
+        imports_list.append(
+            f"from {ref_module_name} import TestCase{ref_testcase_cls_name} as {ref_testcase_cls_name}"
+        )
 
     data = {
         "testcase_path": __ensure_cwd_relative(testcase_path),
-        "class_name": testcase_cls_name,
+        "class_name": f"TestCase{testcase_cls_name}",
         "config": config,
         "teststeps": teststeps,
         "imports_list": imports_list,