diff --git a/src/libs/vpatterndb/vpiecenode_p.h b/src/libs/vpatterndb/vpiecenode_p.h
index 993d5c742..65d3e70ef 100644
--- a/src/libs/vpatterndb/vpiecenode_p.h
+++ b/src/libs/vpatterndb/vpiecenode_p.h
@@ -30,6 +30,7 @@
 #define VPIECENODE_P_H
 
 #include <QSharedData>
+#include <QDataStream>
 #include "../ifc/ifcdef.h"
 #include "../vmisc/diagnostic.h"