diff --git a/src/main/java/cz/jzitnik/tui/MouseHandler.java b/src/main/java/cz/jzitnik/tui/MouseHandler.java
index 6cba2a8..824519f 100644
--- a/src/main/java/cz/jzitnik/tui/MouseHandler.java
+++ b/src/main/java/cz/jzitnik/tui/MouseHandler.java
@@ -39,6 +39,23 @@ public class MouseHandler {
     }
 
     private void scroll(MouseEvent mouseEvent) {
+        if (game.getWindow() == Window.WORLD) {
+            if (mouseEvent.getButton() == MouseEvent.Button.WheelUp) {
+                if (game.getInventory().getItemInhHandIndex() == 0) {
+                    game.changeSlot(8, screenRenderer);
+                } else {
+                    game.changeSlot(game.getInventory().getItemInhHandIndex() - 1, screenRenderer);
+                }
+            }
+
+            if (mouseEvent.getButton() == MouseEvent.Button.WheelDown) {
+                if (game.getInventory().getItemInhHandIndex() == 8) {
+                    game.changeSlot(0, screenRenderer);
+                } else {
+                    game.changeSlot(game.getInventory().getItemInhHandIndex() + 1, screenRenderer);
+                }
+            }
+        }
     }
 
     private void leftClick(MouseEvent mouseEvent) {