diff --git a/custom_components/petlibro/devices/feeders/feeder.py b/custom_components/petlibro/devices/feeders/feeder.py
index 6c12b54..e813751 100644
--- a/custom_components/petlibro/devices/feeders/feeder.py
+++ b/custom_components/petlibro/devices/feeders/feeder.py
@@ -4,7 +4,7 @@
 
 
 UNITS = {
-    1: "cup",
+    1: "cups",
     2: "oz",
     3: "g",
     4: "mL"
@@ -66,4 +66,4 @@ def convert_unit(self, value: int) -> int:
         """
         if self.unit_id:
             return float('%.2f'%(value)) * UNITS_RATIO.get(self.unit_id, 1)
-        return '%.2f'%(value)
+        return float('%.2f'%(value))