diff --git a/src/sensorcommands.cpp b/src/sensorcommands.cpp
index 2ef51f6..bebb482 100644
--- a/src/sensorcommands.cpp
+++ b/src/sensorcommands.cpp
@@ -675,8 +675,8 @@
             throw std::runtime_error("Invalid sensor map");
         }
 
-        double max;
-        double min;
+        double max = 0;
+        double min = 0;
         getSensorMaxMin(sensorMap, max, min);
 
         int16_t mValue = 0;