diff --git a/stubs/rx/joins/joinobserver.pyi b/stubs/rx/joins/joinobserver.pyi
deleted file mode 100644
--- a/stubs/rx/joins/joinobserver.pyi
+++ /dev/null
@@ -1,19 +0,0 @@
-# Stubs for rx.joins.joinobserver (Python 3)
-#
-# NOTE: This dynamically typed stub was automatically generated by stubgen.
-
-from rx.core import ObserverBase
-from typing import Any
-
-class JoinObserver(ObserverBase):
-    source: Any = ...
-    on_error: Any = ...
-    queue: Any = ...
-    active_plans: Any = ...
-    subscription: Any = ...
-    is_disposed: bool = ...
-    def __init__(self, source: Any, on_error: Any) -> None: ...
-    def add_active_plan(self, active_plan: Any) -> None: ...
-    def subscribe(self) -> None: ...
-    def remove_active_plan(self, active_plan: Any) -> None: ...
-    def dispose(self) -> None: ...