diff --git a/libsolidity/ast/AST.h b/libsolidity/ast/AST.h
index 4767f7c30..b9cc2118e 100644
--- a/libsolidity/ast/AST.h
+++ b/libsolidity/ast/AST.h
@@ -2596,6 +2596,35 @@ private:
 	std::variant<Token, ASTPointer<IdentifierPath>> m_name;
 };
 
+class Builtin: public Expression
+{
+public:
+	Builtin(
+		int64_t _id,
+		SourceLocation _location,
+		ASTPointer<ASTString> _nameParameter,
+		SourceLocation _nameParameterLocation
+	):
+		Expression(_id, std::move(_location)),
+		m_nameParameter(std::move(_nameParameter)),
+		m_nameParameterLocation(std::move(_nameParameterLocation))
+	{
+		solAssert(m_nameParameter);
+	}
+
+	void accept(ASTVisitor& _visitor) override;
+	void accept(ASTConstVisitor& _visitor) const override;
+
+	bool experimentalSolidityOnly() const override { return true; }
+
+	ASTString const& nameParameter() const { return *m_nameParameter; }
+	SourceLocation const& nameParameterLocation() const { return m_nameParameterLocation; }
+
+private:
+	ASTPointer<ASTString> m_nameParameter;
+	SourceLocation m_nameParameterLocation;
+};
+
 /// @}
 
 }
diff --git a/libsolidity/ast/ASTForward.h b/libsolidity/ast/ASTForward.h
index f13b6e55d..f7c3d6023 100644
--- a/libsolidity/ast/ASTForward.h
+++ b/libsolidity/ast/ASTForward.h
@@ -105,6 +105,7 @@ class TypeClassDefinition;
 class TypeClassInstantiation;
 class TypeClassName;
 class TypeDefinition;
+class Builtin;
 /// @}
 
 class VariableScope;
diff --git a/libsolidity/ast/ASTVisitor.h b/libsolidity/ast/ASTVisitor.h
index 959cd5dce..f9196d6b9 100644
--- a/libsolidity/ast/ASTVisitor.h
+++ b/libsolidity/ast/ASTVisitor.h
@@ -115,6 +115,7 @@ public:
 	virtual bool visit(TypeClassInstantiation& _node) { return visitNode(_node); }
 	virtual bool visit(TypeDefinition& _node) { return visitNode(_node); }
 	virtual bool visit(TypeClassName& _node) { return visitNode(_node); }
+	virtual bool visit(Builtin& _node) { return visitNode(_node); }
 	///  @}
 
 	virtual void endVisit(SourceUnit& _node) { endVisitNode(_node); }
@@ -178,6 +179,7 @@ public:
 	virtual void endVisit(TypeClassInstantiation& _node) { endVisitNode(_node); }
 	virtual void endVisit(TypeDefinition& _node) { endVisitNode(_node); }
 	virtual void endVisit(TypeClassName& _node) { endVisitNode(_node); }
+	virtual void endVisit(Builtin& _node) { endVisitNode(_node); }
 	///  @}
 
 protected:
@@ -263,6 +265,7 @@ public:
 	virtual bool visit(TypeClassInstantiation const& _node) { return visitNode(_node); }
 	virtual bool visit(TypeDefinition const& _node) { return visitNode(_node); }
 	virtual bool visit(TypeClassName const& _node) { return visitNode(_node); }
+	virtual bool visit(Builtin const& _node) { return visitNode(_node); }
 	///  @}
 
 	virtual void endVisit(SourceUnit const& _node) { endVisitNode(_node); }
@@ -326,6 +329,7 @@ public:
 	virtual void endVisit(TypeClassInstantiation const& _node) { endVisitNode(_node); }
 	virtual void endVisit(TypeDefinition const& _node) { endVisitNode(_node); }
 	virtual void endVisit(TypeClassName const& _node) { endVisitNode(_node); }
+	virtual void endVisit(Builtin const& _node) { endVisitNode(_node); }
 	///  @}
 
 protected:
diff --git a/libsolidity/ast/AST_accept.h b/libsolidity/ast/AST_accept.h
index d0b5ad281..be9de64db 100644
--- a/libsolidity/ast/AST_accept.h
+++ b/libsolidity/ast/AST_accept.h
@@ -1128,6 +1128,18 @@ void TypeClassName::accept(ASTConstVisitor& _visitor) const
 	}
 	_visitor.endVisit(*this);
 }
+
+void Builtin::accept(ASTVisitor& _visitor)
+{
+	_visitor.visit(*this);
+	_visitor.endVisit(*this);
+}
+
+void Builtin::accept(ASTConstVisitor& _visitor) const
+{
+	_visitor.visit(*this);
+	_visitor.endVisit(*this);
+}
 /// @}
 
 }