diff --git a/src/PwmSensor.cpp b/src/PwmSensor.cpp
index 2ed24a6..ae7b240 100644
--- a/src/PwmSensor.cpp
+++ b/src/PwmSensor.cpp
@@ -50,7 +50,7 @@
         pwmMax = sysPwmMax;
     }
 
-    if (!pwmValue)
+    if (pwmValue == 0U)
     {
         // default pwm to non 0
         pwmValue = static_cast<uint32_t>(pwmMax * (defaultPwm / 100.0));