diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/Row.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/Row.scala
index 344dcb9bce62bf3e15c20a1ae2e73277c87721d0..65f91429648c14ba9da372e669e625251ffa1126 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/Row.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/Row.scala
@@ -462,7 +462,7 @@ trait Row extends Serializable {
   def mkString(start: String, sep: String, end: String): String = toSeq.mkString(start, sep, end)
 
   /**
-   * Returns the value of a given fieldName.
+   * Returns the value at position i.
    *
    * @throws UnsupportedOperationException when schema is not defined.
    * @throws ClassCastException when data type does not match.