diff --git a/src/libs/advanceddockingsystem/docksplitter.cpp b/src/libs/advanceddockingsystem/docksplitter.cpp
index dfc976298c9..ee6ffc1d3be 100644
--- a/src/libs/advanceddockingsystem/docksplitter.cpp
+++ b/src/libs/advanceddockingsystem/docksplitter.cpp
@@ -39,6 +39,7 @@
 
 #include <QChildEvent>
 #include <QLoggingCategory>
+#include <QVariant>
 
 static Q_LOGGING_CATEGORY(adsLog, "qtc.qmldesigner.advanceddockingsystem", QtWarningMsg)