diff --git a/app.py b/app.py
index 78e3360..08b3c6a 100644
--- a/app.py
+++ b/app.py
@@ -12,7 +12,7 @@ source = outputs[-1]
 sink = inputs[-1]
 audio_controller = Controller()
 interface = audio_controller.get_list_interfaces(type_interfaces="Client",filtered_by_type=True,)
-steam=interface[-1]
+stream=interface[0]
 
 # initialization
 app = Flask(__name__)
@@ -63,7 +63,7 @@ def disconnect():
 
 @app.route('/api/volume/<float:vol>')
 def set_volume(vol):
-    steam.set_config(volume=vol)
+    stream.set_config(volume=vol)
     return jsonify({'data': 'volume set'})
 
 if __name__ == '__main__':