diff --git a/linq4j/src/main/java/org/apache/calcite/linq4j/tree/Expressions.java b/linq4j/src/main/java/org/apache/calcite/linq4j/tree/Expressions.java
index 1e90c38c6a57..ebde1a4d3eae 100644
--- a/linq4j/src/main/java/org/apache/calcite/linq4j/tree/Expressions.java
+++ b/linq4j/src/main/java/org/apache/calcite/linq4j/tree/Expressions.java
@@ -61,7 +61,6 @@ public static String toString(List<? extends Node> expressions, String sep,
       writer.write(expression);
       writer.append(sep);
     }
-
     return writer.toString();
   }