diff --git a/homeassistant/components/zha/core/channels/smartenergy.py b/homeassistant/components/zha/core/channels/smartenergy.py
index 58a394e7c80..b6a631308ee 100644
--- a/homeassistant/components/zha/core/channels/smartenergy.py
+++ b/homeassistant/components/zha/core/channels/smartenergy.py
@@ -128,7 +128,7 @@ class Metering(ZigbeeChannel):
             "demand_formatting", 0xF9
         )  # 1 digit to the right, 15 digits to the left
 
-        r_digits = fmting & 0x07  # digits to the right of decimal point
+        r_digits = int(fmting & 0x07)  # digits to the right of decimal point
         l_digits = (fmting >> 3) & 0x0F  # digits to the left of decimal point
         if l_digits == 0:
             l_digits = 15