diff --git a/wrangler-api/src/main/java/io/cdap/wrangler/api/Row.java b/wrangler-api/src/main/java/io/cdap/wrangler/api/Row.java
index 738a403ab..5727f61e0 100644
--- a/wrangler-api/src/main/java/io/cdap/wrangler/api/Row.java
+++ b/wrangler-api/src/main/java/io/cdap/wrangler/api/Row.java
@@ -158,7 +158,7 @@ public Row remove(int idx) {
    * Finds a column index based on the name of the column. The col name is case insensitive.
    *
    * @param col to be searched within the row.
-   * @return null if not present, else the index at which the column is found.
+   * @return -1 if not present, else the index at which the column is found.
    */
   public int find(String col) {
     int idx = 0;