diff --git a/src/plugins/coreplugin/id.cpp b/src/plugins/coreplugin/id.cpp
index 1d32ad80859..320aae704f4 100644
--- a/src/plugins/coreplugin/id.cpp
+++ b/src/plugins/coreplugin/id.cpp
@@ -34,6 +34,7 @@
 
 #include <QByteArray>
 #include <QDataStream>
+#include <QDebug>
 #include <QHash>
 #include <QVariant>