diff --git a/src/FanMain.cpp b/src/FanMain.cpp
index a32d054..112848b 100644
--- a/src/FanMain.cpp
+++ b/src/FanMain.cpp
@@ -369,7 +369,7 @@
 
                 constexpr double defaultMaxReading = 25000;
                 constexpr double defaultMinReading = 0;
-                auto limits =
+                std::pair<double, double> limits =
                     std::make_pair(defaultMinReading, defaultMaxReading);
 
                 auto connector =