diff --git a/src/libs/vpatterndb/vcontainer.h b/src/libs/vpatterndb/vcontainer.h
index 1ffe87e33..726b6bbf9 100644
--- a/src/libs/vpatterndb/vcontainer.h
+++ b/src/libs/vpatterndb/vcontainer.h
@@ -91,6 +91,7 @@ public:
           gObjects(data.gObjects),
           variables(data.variables),
           details(data.details),
+          pieces(data.pieces),
           trVars(data.trVars),
           patternUnit(data.patternUnit)
     {}