diff --git a/src/PSUSensor.cpp b/src/PSUSensor.cpp
index fdd453a..58dee54 100644
--- a/src/PSUSensor.cpp
+++ b/src/PSUSensor.cpp
@@ -97,7 +97,7 @@
             float nvalue = std::stof(response);
             responseStream.clear();
             nvalue /= sensorFactor;
-            if (nvalue != value)
+            if (static_cast<double>(nvalue) != value)
             {
                 updateValue(nvalue);
             }