diff --git a/Meta/Lagom/Tools/CodeGenerators/JSSpecCompiler/AST/AST.h b/Meta/Lagom/Tools/CodeGenerators/JSSpecCompiler/AST/AST.h
index 2ae3026af5..30a6500dc0 100644
--- a/Meta/Lagom/Tools/CodeGenerators/JSSpecCompiler/AST/AST.h
+++ b/Meta/Lagom/Tools/CodeGenerators/JSSpecCompiler/AST/AST.h
@@ -57,7 +57,12 @@ protected:
 
 class ErrorNode : public Node {
 public:
-    ErrorNode() { }
+    ErrorNode(StringView error = ""sv)
+        : m_error(error)
+    {
+    }
+
+    StringView m_error;
 
 protected:
     void dump_tree(StringBuilder& builder) override;
diff --git a/Meta/Lagom/Tools/CodeGenerators/JSSpecCompiler/AST/ASTPrinting.cpp b/Meta/Lagom/Tools/CodeGenerators/JSSpecCompiler/AST/ASTPrinting.cpp
index e80ba6d8a8..a07fe99840 100644
--- a/Meta/Lagom/Tools/CodeGenerators/JSSpecCompiler/AST/ASTPrinting.cpp
+++ b/Meta/Lagom/Tools/CodeGenerators/JSSpecCompiler/AST/ASTPrinting.cpp
@@ -31,7 +31,7 @@ void Node::dump_node(StringBuilder& builder, AK::CheckedFormatString<Parameters.
 
 void ErrorNode::dump_tree(StringBuilder& builder)
 {
-    dump_node(builder, "Error");
+    dump_node(builder, "Error \"{}\"", m_error);
 }
 
 void MathematicalConstant::dump_tree(StringBuilder& builder)