diff --git a/adapter/src/main/java/com/iluwatar/adapter/FishingBoatAdapter.java b/adapter/src/main/java/com/iluwatar/adapter/FishingBoatAdapter.java
index 8c7e9e88e220..197cec4d3149 100644
--- a/adapter/src/main/java/com/iluwatar/adapter/FishingBoatAdapter.java
+++ b/adapter/src/main/java/com/iluwatar/adapter/FishingBoatAdapter.java
@@ -31,6 +31,7 @@
 public class FishingBoatAdapter implements RowingBoat {
 
   private final FishingBoat boat = new FishingBoat();
+  private int row = 0;
 
   public final void row() {
     boat.sail();