diff --git a/python/api.py b/python/api.py
index cf9ae8b..492fa41 100644
--- a/python/api.py
+++ b/python/api.py
@@ -8,7 +8,7 @@ def brightness():
    if request.method == 'POST':
       json = request.get_json()
       if json['level'] < 255 and json['level'] > 15:
-        status = os.popen('echo '+int(json['level'])+' > /sys/class/backlight/rpi_backlight/brightness').read()
+        status = os.popen('echo '+str(json['level'])+' > /sys/class/backlight/rpi_backlight/brightness').read()
       elif json['level'] == 256:
         status = os.popen('sudo cat /sys/class/backlight/rpi_backlight/brightness').read()
       return status