diff --git a/src/declarativeimports/core/datamodel.cpp b/src/declarativeimports/core/datamodel.cpp
--- a/src/declarativeimports/core/datamodel.cpp
+++ b/src/declarativeimports/core/datamodel.cpp
@@ -64,7 +64,9 @@
 
 QHash<int,QByteArray> SortFilterModel::roleNames() const
 {
-    return sourceModel()->roleNames();
+    if (sourceModel())
+       return sourceModel()->roleNames();
+    return {};
 }
 
 int SortFilterModel::roleNameToId(const QString &name) const