diff --git a/httprunner/exceptions.py b/httprunner/exceptions.py
index 7eeeb7c8..df18543f 100644
--- a/httprunner/exceptions.py
+++ b/httprunner/exceptions.py
@@ -50,8 +50,5 @@ class VariableNotFound(NotFoundError):
 class ApiNotFound(NotFoundError):
     pass
 
-class SuiteNotFound(NotFoundError):
-    pass
-
 class TestcaseNotFound(NotFoundError):
     pass
diff --git a/httprunner/loader.py b/httprunner/loader.py
index 02eb2f3e..85778af8 100644
--- a/httprunner/loader.py
+++ b/httprunner/loader.py
@@ -337,9 +337,9 @@ def _get_block_by_name(ref_call, ref_type):
 
 
 def _get_test_definition(name, ref_type):
-    """ get expected api or suite.
+    """ get expected api or testcase.
     @params:
-        name: api or suite name
+        name: api or testcase name
         ref_type: "api" or "suite"
     @return
         expected api info if found, otherwise raise ApiNotFound exception
@@ -352,7 +352,7 @@ def _get_test_definition(name, ref_type):
             raise exceptions.ApiNotFound(err_msg)
         else:
             # ref_type == "suite":
-            raise exceptions.SuiteNotFound(err_msg)
+            raise exceptions.TestcaseNotFound(err_msg)
 
     return block
 
diff --git a/tests/test_loader.py b/tests/test_loader.py
index fa059ab1..869e3f5a 100644
--- a/tests/test_loader.py
+++ b/tests/test_loader.py
@@ -231,7 +231,7 @@ class TestSuiteLoader(unittest.TestCase):
         api_def = loader._get_test_definition("create_and_check", "suite")
         self.assertEqual(api_def["config"]["name"], "create user and check result.")
 
-        with self.assertRaises(exceptions.SuiteNotFound):
+        with self.assertRaises(exceptions.TestcaseNotFound):
             loader._get_test_definition("create_and_check_XXX", "suite")
 
     def test_merge_validator(self):