diff --git a/src/main/java/cat/hack3/codingtests/marsrover/MarsMap.java b/src/main/java/cat/hack3/codingtests/marsrover/MarsMap.java
index 2c7e772..f962464 100644
--- a/src/main/java/cat/hack3/codingtests/marsrover/MarsMap.java
+++ b/src/main/java/cat/hack3/codingtests/marsrover/MarsMap.java
@@ -33,7 +33,12 @@ public class MarsMap {
         var newLongitude = currentPosition.getLongitude();
         switch (direction) {
             case NORTH -> newLatitude--;
-            case SOUTH -> newLatitude++;
+            case SOUTH -> {
+                if (newLatitude+1 > height)
+                    newLatitude=1;
+                else
+                    newLatitude++;
+            }
             case WEST -> newLongitude--;
             case EAST -> newLongitude++;
         }