diff --git a/tools/chatgui/tests/test_member_detail.cpp b/tools/chatgui/tests/test_member_detail.cpp
index 5eedfbf77..7a954dc80 100644
--- a/tools/chatgui/tests/test_member_detail.cpp
+++ b/tools/chatgui/tests/test_member_detail.cpp
@@ -14,6 +14,7 @@
 #include <QListView>
 #include <QAbstractItemModelTester>
 #include <QMenu>
+#include <QMessageBox>
 #include <QPainter>
 #include <QMouseEvent>
 #include <QScopeGuard>