diff --git a/lucene/test-framework/src/java/org/apache/lucene/analysis/TokenStreamToDot.java b/lucene/test-framework/src/java/org/apache/lucene/analysis/TokenStreamToDot.java
index 384f58659b9..aeb1314eb08 100644
--- a/lucene/test-framework/src/java/org/apache/lucene/analysis/TokenStreamToDot.java
+++ b/lucene/test-framework/src/java/org/apache/lucene/analysis/TokenStreamToDot.java
@@ -94,7 +94,7 @@ public class TokenStreamToDot {
         final int endOffset = offsetAtt.endOffset();
         //System.out.println("start=" + startOffset + " end=" + endOffset + " len=" + inputText.length());
         if (inputText != null) {
-          arcLabel += "  / " + inputText.substring(startOffset, endOffset);
+          arcLabel += " / " + inputText.substring(startOffset, endOffset);
         } else {
           arcLabel += " / " + startOffset + "-" + endOffset;
         }