diff --git a/stdlib/3/subprocess.pyi b/stdlib/3/subprocess.pyi
index 2fd8b5ba7..49928b396 100644
--- a/stdlib/3/subprocess.pyi
+++ b/stdlib/3/subprocess.pyi
@@ -1156,7 +1156,10 @@ class Popen(Generic[AnyStr]):
                     pass_fds: Any = ...) -> Popen[Any]: ...
 
     def poll(self) -> int: ...
-    def wait(self, timeout: Optional[float] = ...) -> int: ...
+    if sys.version_info >= (3, 7):
+        def wait(self, timeout: Optional[float] = ...) -> int: ...
+    else:
+        def wait(self, timeout: Optional[float] = ..., endtime: Optional[float] = ...) -> int: ...
     # Return str/bytes
     def communicate(self,
                     input: Optional[AnyStr] = ...,