diff --git a/projects/mtg/src/TestSuiteAI.cpp b/projects/mtg/src/TestSuiteAI.cpp
index 508b157e9..e19e184d7 100644
--- a/projects/mtg/src/TestSuiteAI.cpp
+++ b/projects/mtg/src/TestSuiteAI.cpp
@@ -8,6 +8,7 @@
 #include "Rules.h"
 #include "GameObserver.h"
 #include "GameStateShop.h"
+#include <QThread>
 
 using std::string;