diff --git a/include/TachSensor.hpp b/include/TachSensor.hpp
index c9aa80a..174ce56 100644
--- a/include/TachSensor.hpp
+++ b/include/TachSensor.hpp
@@ -52,7 +52,8 @@
                const std::shared_ptr<RedundancySensor> &redundancy,
                boost::asio::io_service &io, const std::string &fanName,
                std::vector<thresholds::Threshold> &&thresholds,
-               const std::string &sensorConfiguration);
+               const std::string &sensorConfiguration,
+               const std::pair<size_t, size_t> &limits);
     ~TachSensor();
 
   private: