diff --git a/tool/src/org/antlr/v4/codegen/src/RuleFunction.java b/tool/src/org/antlr/v4/codegen/src/RuleFunction.java
index 352adeb64..4c4ce11ba 100644
--- a/tool/src/org/antlr/v4/codegen/src/RuleFunction.java
+++ b/tool/src/org/antlr/v4/codegen/src/RuleFunction.java
@@ -33,6 +33,10 @@ public class RuleFunction extends OutputModelObject {
 	public OrderedHashSet<Decl> decls;
 	public SrcOp code;
 
+	public RuleFunction(OutputModelFactory factory) {
+		super(factory);
+	}
+
 	public RuleFunction(OutputModelFactory factory, Rule r) {
 		super(factory);
 		this.name = r.name;
diff --git a/tool/src/org/antlr/v4/codegen/src/StartRuleFunction.java b/tool/src/org/antlr/v4/codegen/src/StartRuleFunction.java
index f704b451b..0945f9800 100644
--- a/tool/src/org/antlr/v4/codegen/src/StartRuleFunction.java
+++ b/tool/src/org/antlr/v4/codegen/src/StartRuleFunction.java
@@ -1,11 +1,27 @@
 package org.antlr.v4.codegen.src;
 
 import org.antlr.v4.codegen.OutputModelFactory;
+import org.antlr.v4.misc.Utils;
+import org.antlr.v4.tool.GrammarAST;
 import org.antlr.v4.tool.Rule;
 
+import java.util.ArrayList;
+
 /** */
 public class StartRuleFunction extends RuleFunction {
 	public StartRuleFunction(OutputModelFactory factory, Rule r) {
-		super(factory, r);
+		super(factory);
+		this.name = r.name;
+		if ( r.modifiers!=null && r.modifiers.size()>0 ) {
+			this.modifiers = new ArrayList<String>();
+			for (GrammarAST t : r.modifiers) modifiers.add(t.getText());
+		}
+		modifiers = Utils.nodesToStrings(r.modifiers);
+
+		ctxType = factory.gen.target.getRuleFunctionContextStructName(r);
+
+		if ( r.args!=null ) {
+			args = r.args.attributes.values();
+		}
 	}
 }