diff --git a/plugins/feature/gs232controller/gs232controllerworker.cpp b/plugins/feature/gs232controller/gs232controllerworker.cpp
index 1e5fe72b9..11c930594 100644
--- a/plugins/feature/gs232controller/gs232controllerworker.cpp
+++ b/plugins/feature/gs232controller/gs232controllerworker.cpp
@@ -17,6 +17,7 @@
 ///////////////////////////////////////////////////////////////////////////////////
 
 #include <algorithm>
+#include <cmath>
 
 #include <QDebug>
 #include <QTcpServer>