diff --git a/src/libs/3rdparty/modeling/qmt/diagram/drelation.cpp b/src/libs/3rdparty/modeling/qmt/diagram/drelation.cpp
index 664abcb4b8d..c8eadac7351 100644
--- a/src/libs/3rdparty/modeling/qmt/diagram/drelation.cpp
+++ b/src/libs/3rdparty/modeling/qmt/diagram/drelation.cpp
@@ -92,4 +92,14 @@ void DRelation::setIntermediatePoints(const QList<DRelation::IntermediatePoint>
     m_intermediatePoints = intermediatePoints;
 }
 
+void DRelation::accept(DVisitor *visitor)
+{
+    visitor->visitDRelation(this);
+}
+
+void DRelation::accept(DConstVisitor *visitor) const
+{
+    visitor->visitDRelation(this);
+}
+
 } // namespace qmt
diff --git a/src/libs/3rdparty/modeling/qmt/diagram/drelation.h b/src/libs/3rdparty/modeling/qmt/diagram/drelation.h
index 0928861a2ed..2afa7913098 100644
--- a/src/libs/3rdparty/modeling/qmt/diagram/drelation.h
+++ b/src/libs/3rdparty/modeling/qmt/diagram/drelation.h
@@ -71,6 +71,9 @@ public:
     QList<IntermediatePoint> intermediatePoints() const { return m_intermediatePoints; }
     void setIntermediatePoints(const QList<IntermediatePoint> &intermediatePoints);
 
+     void accept(DVisitor *visitor);
+     void accept(DConstVisitor *visitor) const;
+
 private:
     Uid m_modelUid;
     QList<QString> m_stereotypes;