diff --git a/bot/plugin_manager.py b/bot/plugin_manager.py
index 4f9b5a1b..ccf6ec6e 100644
--- a/bot/plugin_manager.py
+++ b/bot/plugin_manager.py
@@ -16,16 +16,16 @@ class PluginManager:
     def __init__(self, config):
         enabled_plugins = config.get('plugins', [])
         plugin_mapping = {
-            'wolfram': WolframAlphaPlugin(),
-            'weather': WeatherPlugin(),
-            'crypto': CryptoPlugin(),
-            'web_search': WebSearchPlugin(),
-            'spotify': SpotifyPlugin(),
-            'translate': TranslatePlugin(),
-            'image_search': ImageSearchPlugin(),
-            'worldtimeapi': WorldTimeApiPlugin(),
+            'wolfram': WolframAlphaPlugin,
+            'weather': WeatherPlugin,
+            'crypto': CryptoPlugin,
+            'web_search': WebSearchPlugin,
+            'spotify': SpotifyPlugin,
+            'translate': TranslatePlugin,
+            'image_search': ImageSearchPlugin,
+            'worldtimeapi': WorldTimeApiPlugin,
         }
-        self.plugins = [plugin_mapping[plugin] for plugin in enabled_plugins]
+        self.plugins = [plugin_mapping[plugin]() for plugin in enabled_plugins if plugin in plugin_mapping]
 
     def get_functions_specs(self):
         """