diff --git a/plugin.py b/plugin.py
index 8098025..34eab0e 100644
--- a/plugin.py
+++ b/plugin.py
@@ -124,7 +124,7 @@ def config(self):
 
         return read_client_config(self.name, config)
 
-    def on_start(self, window) -> bool:
+    def on_start(self, window):
         if not is_elixir_installed():
             sublime.status_message(
                 "Please install Elixir for LSP-elixir plugin to work.")