diff --git a/tool/src/org/antlr/v4/tool/Grammar.java b/tool/src/org/antlr/v4/tool/Grammar.java
index b53d8cef3..c5733cbb9 100644
--- a/tool/src/org/antlr/v4/tool/Grammar.java
+++ b/tool/src/org/antlr/v4/tool/Grammar.java
@@ -71,9 +71,6 @@ public class Grammar implements AttributeResolver {
 			put("lexer:TOKEN_LABEL", AttributeDict.predefinedTokenDict);
             put("parser:RULE_LABEL", Rule.predefinedRulePropertiesDict);
             put("parser:TOKEN_LABEL", AttributeDict.predefinedTokenDict);
-            put("tree:RULE_LABEL", Rule.predefinedTreeRulePropertiesDict);
-            put("tree:TOKEN_LABEL", AttributeDict.predefinedTokenDict);
-            put("tree:WILDCARD_TREE_LABEL", AttributeDict.predefinedTokenDict);
             put("combined:RULE_LABEL", Rule.predefinedRulePropertiesDict);
             put("combined:TOKEN_LABEL", AttributeDict.predefinedTokenDict);
 		}};
diff --git a/tool/src/org/antlr/v4/tool/Rule.java b/tool/src/org/antlr/v4/tool/Rule.java
index d9edeeec6..9fced0924 100644
--- a/tool/src/org/antlr/v4/tool/Rule.java
+++ b/tool/src/org/antlr/v4/tool/Rule.java
@@ -53,15 +53,6 @@ public class Rule implements AttributeResolver {
             add(new Attribute("ctx"));
         }};
 
-    public static AttributeDict predefinedTreeRulePropertiesDict =
-        new AttributeDict(AttributeDict.DictType.PREDEFINED_TREE_RULE) {{
-            add(new Attribute("text"));
-            add(new Attribute("start")); // note: no stop; not meaningful
-            add(new Attribute("tree"));
-            add(new Attribute("st"));
-            add(new Attribute("ctx"));
-        }};
-
     public static AttributeDict predefinedLexerRulePropertiesDict =
         new AttributeDict(AttributeDict.DictType.PREDEFINED_LEXER_RULE) {{
             add(new Attribute("text"));