diff --git a/tool/src/org/antlr/v4/automata/ATNPrinter.java b/tool/src/org/antlr/v4/automata/ATNPrinter.java
index 2f5a15382..9ee0b0b73 100644
--- a/tool/src/org/antlr/v4/automata/ATNPrinter.java
+++ b/tool/src/org/antlr/v4/automata/ATNPrinter.java
@@ -111,8 +111,7 @@ public class ATNPrinter {
 				}
 				else if ( t instanceof AtomTransition ) {
 					AtomTransition a = (AtomTransition)t;
-					String label = a.toString();
-					if ( g!=null ) label = g.getTokenDisplayName(a.label);
+					String label = g.getTokenDisplayName(a.label);
 					buf.append("-").append(label).append("->").append(getStateString(t.target)).append('\n');
 				}
 				else {