diff --git a/plugin.py b/plugin.py
index ae28c42..d32cff7 100755
--- a/plugin.py
+++ b/plugin.py
@@ -357,7 +357,7 @@ class BasePlugin:
                 'X-Gizwits-Application-Id': 'c70a66ff039d41b4a220e198b0fcc8b3',
             }
             #data = '{"raw": '+mode_str[mode]+'}'
-            data = f'{"attrs": {"mode":{mode_str[mode]}}}'
+            data = '{"attrs": {"mode":' + mode_str[mode] + '}}'
             url = f"https://euapi.gizwits.com/app/control/{self.did}"
             try:
                 response = requests.post(url, headers=headers, data=data, timeout=3).json()