2 files changed, 19 insertions, 10 deletions
diff --git a/src/gui/windows/buydialog.cpp b/src/gui/windows/buydialog.cpp
index 068440c65..a71759840 100644
--- a/src/gui/windows/buydialog.cpp
+++ b/src/gui/windows/buydialog.cpp
@@ -471,16 +471,7 @@ void BuyDialog::action(const ActionEvent &event)
                     mAmountItems);
             }
 
-            // Update money and adjust the max number of items
-            // that can be bought
-            mMaxItems -= mAmountItems;
-            setMoney(mMoney -
-                     mAmountItems * mShopItems->at(selectedItem)->getPrice());
-
-            // Reset selection
-            mAmountItems = 1;
-            mSlider->setScale(1, mMaxItems);
-            mSlider->setValue(1);
+            updateSlider(selectedItem);
         }
         else if (mNpcId == Nick)
         {
@@ -492,6 +483,9 @@ void BuyDialog::action(const ActionEvent &event)
                     vendingHandler->buy(being,
                         item->getInvIndex(),
                         mAmountItems);
+                    item->increaseQuantity(-mAmountItems);
+                    item->update();
+                    updateSlider(selectedItem);
                 }
             }
             else if (tradeWindow)
@@ -508,6 +502,19 @@ void BuyDialog::action(const ActionEvent &event)
     }
 }
 
+void BuyDialog::updateSlider(const int selectedItem)
+{
+    // Update money and adjust the max number of items
+    // that can be bought
+    mMaxItems -= mAmountItems;
+    setMoney(mMoney - mAmountItems * mShopItems->at(selectedItem)->getPrice());
+
+    // Reset selection
+    mAmountItems = 1;
+    mSlider->setScale(1, mMaxItems);
+    mSlider->setValue(1);
+}
+
 void BuyDialog::valueChanged(const SelectionEvent &event A_UNUSED)
 {
     // Reset amount of items and update labels
diff --git a/src/gui/windows/buydialog.h b/src/gui/windows/buydialog.h
index d697eff5d..78df8ebf8 100644
--- a/src/gui/windows/buydialog.h
+++ b/src/gui/windows/buydialog.h
@@ -145,6 +145,8 @@ class BuyDialog final : public Window,
         static void closeAll();
 
     private:
+        void updateSlider(const int selectedItem);
+
         typedef std::list<BuyDialog*> DialogList;
         static DialogList instances;