diff --git a/src/transform/AstDumpDotPass.cpp b/src/transform/AstDumpDotPass.cpp
index fc84ae1a1..6a3dedc9e 100644
--- a/src/transform/AstDumpDotPass.cpp
+++ b/src/transform/AstDumpDotPass.cpp
@@ -85,6 +85,7 @@ class AstDumpDotVisitor final : public RecursiveVisitor
     void visit( DerivedDefinition& node ) override;
     void visit( RuleDefinition& node ) override;
     void visit( EnumerationDefinition& node ) override;
+    void visit( StructureDefinition& node ) override;
 
     void visit( ValueAtom& node ) override;
     void visit( ReferenceAtom& node ) override;
@@ -201,6 +202,13 @@ void AstDumpDotVisitor::visit( EnumerationDefinition& node )
     RecursiveVisitor::visit( node );
 }
 
+void AstDumpDotVisitor::visit( StructureDefinition& node )
+{
+    DotLink link( this, &node );
+    dumpNode( node, "StructureDefinition" );
+    RecursiveVisitor::visit( node );
+}
+
 void AstDumpDotVisitor::visit( ValueAtom& node )
 {
     DotLink link( this, &node );