7 files changed, 10 insertions, 9 deletions
diff --git a/src/gui/widgets/selldialog.cpp b/src/gui/widgets/selldialog.cpp
index 76cea21f2..956cacb2f 100644
--- a/src/gui/widgets/selldialog.cpp
+++ b/src/gui/widgets/selldialog.cpp
@@ -47,7 +47,7 @@
 
 SellDialog::DialogList SellDialog::instances;
 
-SellDialog::SellDialog(const bool isSell,
+SellDialog::SellDialog(const IsSell isSell,
                        const bool advanced) :
     // TRANSLATORS: sell dialog name
     Window(_("Sell"), Modal_false, nullptr, "sell.xml"),
@@ -122,7 +122,7 @@ void SellDialog::postInit()
     ContainerPlacer placer;
     placer = getPlacer(0, 0);
 
-    if (mIsSell)
+    if (mIsSell == IsSell_true)
     {
         // TRANSLATORS: sell dialog button
         mIncreaseButton = new Button(this, _("+"), "inc", this);
diff --git a/src/gui/widgets/selldialog.h b/src/gui/widgets/selldialog.h
index e94619f1f..709756990 100644
--- a/src/gui/widgets/selldialog.h
+++ b/src/gui/widgets/selldialog.h
@@ -23,6 +23,7 @@
 #ifndef GUI_WIDGETS_SELLDIALOG_H
 #define GUI_WIDGETS_SELLDIALOG_H
 
+#include "enums/simpletypes/issell.h"
 #include "enums/simpletypes/itemcolor.h"
 
 #include "gui/widgets/window.h"
@@ -52,7 +53,7 @@ class SellDialog notfinal : public Window,
         /**
          * Constructor.
          */
-        SellDialog(const bool isSell,
+        SellDialog(const IsSell isSell,
                    const bool advanced);
 
         A_DELETE_COPY(SellDialog)
@@ -144,7 +145,7 @@ class SellDialog notfinal : public Window,
         int mMaxItems;
         int mAmountItems;
 
-        bool mIsSell;
+        IsSell mIsSell;
         bool mAdvanced;
 };
 
diff --git a/src/gui/windows/buyingstoreselldialog.cpp b/src/gui/windows/buyingstoreselldialog.cpp
index af3d9d8ff..bfb3a5ca3 100644
--- a/src/gui/windows/buyingstoreselldialog.cpp
+++ b/src/gui/windows/buyingstoreselldialog.cpp
@@ -38,7 +38,7 @@
 
 BuyingStoreSellDialog::BuyingStoreSellDialog(const BeingId accountId,
                                              const int storeId) :
-    SellDialog(true, false),
+    SellDialog(IsSell_true, false),
     mAccountId(accountId),
     mStoreId(storeId)
 {
diff --git a/src/gui/windows/eggselectiondialog.cpp b/src/gui/windows/eggselectiondialog.cpp
index 266e3519b..03c10a87b 100644
--- a/src/gui/windows/eggselectiondialog.cpp
+++ b/src/gui/windows/eggselectiondialog.cpp
@@ -36,7 +36,7 @@
 #include "debug.h"
 
 EggSelectionDialog::EggSelectionDialog() :
-    SellDialog(false, false)
+    SellDialog(IsSell_false, false)
 {
     // TRANSLATORS: egg selection dialog name
     setWindowName(_("Select egg"));
diff --git a/src/gui/windows/insertcarddialog.cpp b/src/gui/windows/insertcarddialog.cpp
index 8620b06f7..7261e0f39 100644
--- a/src/gui/windows/insertcarddialog.cpp
+++ b/src/gui/windows/insertcarddialog.cpp
@@ -38,7 +38,7 @@
 
 InsertCardDialog::InsertCardDialog(const int itemIndex,
                                    const Item *const item) :
-    SellDialog(false, false),
+    SellDialog(IsSell_false, false),
     mItemIndex(itemIndex)
 {
     // TRANSLATORS: insert card dialog name
diff --git a/src/gui/windows/npcselldialog.cpp b/src/gui/windows/npcselldialog.cpp
index ab9ae47d0..98972ef8f 100644
--- a/src/gui/windows/npcselldialog.cpp
+++ b/src/gui/windows/npcselldialog.cpp
@@ -45,7 +45,7 @@
 #include "debug.h"
 
 NpcSellDialog::NpcSellDialog(const BeingId npcId) :
-    SellDialog(true,
+    SellDialog(IsSell_true,
         serverFeatures ? serverFeatures->haveAdvancedBuySell() : false),
     mNpcId(npcId)
 {
diff --git a/src/gui/windows/shopselldialog.cpp b/src/gui/windows/shopselldialog.cpp
index 081ffea7f..c14e09fee 100644
--- a/src/gui/windows/shopselldialog.cpp
+++ b/src/gui/windows/shopselldialog.cpp
@@ -35,7 +35,7 @@
 #include "debug.h"
 
 ShopSellDialog::ShopSellDialog(const std::string &nick) :
-    SellDialog(true, false),
+    SellDialog(IsSell_true, false),
     mNick(nick)
 {
 }