diff --git a/main.cpp b/main.cpp
index b1d69fe..31013c5 100644
--- a/main.cpp
+++ b/main.cpp
@@ -12,6 +12,7 @@
 #include <unistd.h>
 #include <thread>
 #include <memory>
+#include <QSharedMemory>
 
 #ifdef PTU5
 #define SERIAL_PORT "ttymxc2"