diff --git a/gerrit-prettify/src/main/java/com/google/gerrit/prettify/common/SparseFileContent.java b/gerrit-prettify/src/main/java/com/google/gerrit/prettify/common/SparseFileContent.java
index 633d4ea29f..1a5468caa7 100644
--- a/gerrit-prettify/src/main/java/com/google/gerrit/prettify/common/SparseFileContent.java
+++ b/gerrit-prettify/src/main/java/com/google/gerrit/prettify/common/SparseFileContent.java
@@ -296,7 +296,7 @@ public class SparseFileContent {
 
     @Override
     public String toString() {
-      return "Range[" + base + "," + end() + "]";
+      return "Range[" + base + "," + end() + ")";
     }
   }
 }