diff --git a/stdlib/2and3/pyclbr.pyi b/stdlib/2and3/pyclbr.pyi
index efecf3292..0e2936058 100644
--- a/stdlib/2and3/pyclbr.pyi
+++ b/stdlib/2and3/pyclbr.pyi
@@ -1,3 +1,4 @@
+import sys
 from typing import List, Union, Sequence, Optional, Dict
 
 
@@ -9,12 +10,10 @@ class Class:
     file: int
     lineno: int
 
-    def __init__(self,
-                 module: str,
-                 name: str,
-                 super: Optional[List[Union[Class, str]]],
-                 file: str,
-                 lineno: int) -> None: ...
+    if sys.version_info >= (3, 7):
+        def __init__(self, module: str, name: str, super: Optional[List[Union[Class, str]]], file: str, lineno: int, parent: Optional[Class] = ...) -> None: ...
+    else:
+        def __init__(self, module: str, name: str, super: Optional[List[Union[Class, str]]], file: str, lineno: int) -> None: ...
 
 
 class Function:
@@ -23,11 +22,10 @@ class Function:
     file: int
     lineno: int
 
-    def __init__(self,
-                 module: str,
-                 name: str,
-                 file: str,
-                 lineno: int) -> None: ...
+    if sys.version_info >= (3, 7):
+        def __init__(self, module: str, name: str, file: str, lineno: int, parent: Optional[Function] = ...) -> None: ...
+    else:
+        def __init__(self, module: str, name: str, file: str, lineno: int) -> None: ...
 
 
 def readmodule(module: str,
diff --git a/tests/stubtest_whitelists/py37.txt b/tests/stubtest_whitelists/py37.txt
index b6196ea3f..ecec683e8 100644
--- a/tests/stubtest_whitelists/py37.txt
+++ b/tests/stubtest_whitelists/py37.txt
@@ -49,8 +49,6 @@ logging.handlers.MemoryHandler.__init__
 macurl2path
 multiprocessing.shared_memory
 os.utime
-pyclbr.Class.__init__
-pyclbr.Function.__init__
 pyexpat.XMLParserType.ExternalEntityParserCreate
 queue.SimpleQueue.__init__
 secrets.SystemRandom.getstate
diff --git a/tests/stubtest_whitelists/py38.txt b/tests/stubtest_whitelists/py38.txt
index fc66969fa..d7141a7f0 100644
--- a/tests/stubtest_whitelists/py38.txt
+++ b/tests/stubtest_whitelists/py38.txt
@@ -120,8 +120,6 @@ pickle.Pickler.reducer_override
 platform.DEV_NULL
 profile.Profile.runcall
 pwd.getpwuid
-pyclbr.Class.__init__
-pyclbr.Function.__init__
 queue.SimpleQueue.__init__
 random.Random.getrandbits
 random.getrandbits