diff --git a/src/openrct2-ui/windows/Ride.cpp b/src/openrct2-ui/windows/Ride.cpp
index 5fcacffb73..642b3b26a1 100644
--- a/src/openrct2-ui/windows/Ride.cpp
+++ b/src/openrct2-ui/windows/Ride.cpp
@@ -5914,23 +5914,24 @@ private:
 
     static void UpdateSamePriceThroughoutFlags(ShopItem shop_item)
     {
+        const auto& gameState = GetGameState();
+        const auto existingFlags = gameState.SamePriceThroughoutPark;
+
+        auto newFlags = existingFlags;
         if (GetShopItemDescriptor(shop_item).IsPhoto())
         {
-            auto newFlags = gSamePriceThroughoutPark;
-            if (gSamePriceThroughoutPark & EnumToFlag(shop_item))
+            if (existingFlags & EnumToFlag(shop_item))
                 newFlags &= ~EnumsToFlags(ShopItem::Photo, ShopItem::Photo2, ShopItem::Photo3, ShopItem::Photo4);
             else
                 newFlags |= EnumsToFlags(ShopItem::Photo, ShopItem::Photo2, ShopItem::Photo3, ShopItem::Photo4);
-            auto parkSetParameter = ParkSetParameterAction(ParkParameter::SamePriceInPark, newFlags);
-            GameActions::Execute(&parkSetParameter);
         }
         else
         {
-            auto newFlags = gSamePriceThroughoutPark;
             newFlags ^= EnumToFlag(shop_item);
-            auto parkSetParameter = ParkSetParameterAction(ParkParameter::SamePriceInPark, newFlags);
-            GameActions::Execute(&parkSetParameter);
         }
+
+        auto parkSetParameter = ParkSetParameterAction(ParkParameter::SamePriceInPark, newFlags);
+        GameActions::Execute(&parkSetParameter);
     }
 
     void IncomeTogglePrimaryPrice()
diff --git a/src/openrct2/GameState.h b/src/openrct2/GameState.h
index 09034b7945..8018ef152e 100644
--- a/src/openrct2/GameState.h
+++ b/src/openrct2/GameState.h
@@ -101,6 +101,7 @@ namespace OpenRCT2
         colour_t StaffHandymanColour;
         colour_t StaffMechanicColour;
         colour_t StaffSecurityColour;
+        uint64_t SamePriceThroughoutPark{};
 
         uint8_t ResearchFundingLevel;
         uint8_t ResearchPriorities;
diff --git a/src/openrct2/actions/ParkSetParameterAction.cpp b/src/openrct2/actions/ParkSetParameterAction.cpp
index af35815c34..0da59e5072 100644
--- a/src/openrct2/actions/ParkSetParameterAction.cpp
+++ b/src/openrct2/actions/ParkSetParameterAction.cpp
@@ -73,7 +73,7 @@ GameActions::Result ParkSetParameterAction::Execute() const
             }
             break;
         case ParkParameter::SamePriceInPark:
-            gSamePriceThroughoutPark = _value;
+            gameState.SamePriceThroughoutPark = _value;
             WindowInvalidateByClass(WindowClass::Ride);
             break;
         default:
diff --git a/src/openrct2/park/ParkFile.cpp b/src/openrct2/park/ParkFile.cpp
index a71f89e5b0..6d609c902c 100644
--- a/src/openrct2/park/ParkFile.cpp
+++ b/src/openrct2/park/ParkFile.cpp
@@ -821,7 +821,7 @@ namespace OpenRCT2
                     cs.ReadWrite(gameState.StaffHandymanColour);
                     cs.ReadWrite(gameState.StaffMechanicColour);
                     cs.ReadWrite(gameState.StaffSecurityColour);
-                    cs.ReadWrite(gSamePriceThroughoutPark);
+                    cs.ReadWrite(gameState.SamePriceThroughoutPark);
 
                     // Finances
                     if (cs.GetMode() == OrcaStream::Mode::READING)
diff --git a/src/openrct2/rct1/S4Importer.cpp b/src/openrct2/rct1/S4Importer.cpp
index 970d5ee818..4c4c21f2d0 100644
--- a/src/openrct2/rct1/S4Importer.cpp
+++ b/src/openrct2/rct1/S4Importer.cpp
@@ -2236,10 +2236,10 @@ namespace RCT1
 
             gameState.ParkSize = _s4.ParkSize;
             gameState.TotalRideValueForMoney = _s4.TotalRideValueForMoney;
-            gSamePriceThroughoutPark = 0;
+            gameState.SamePriceThroughoutPark = 0;
             if (_gameVersion == FILE_VERSION_RCT1_LL)
             {
-                gSamePriceThroughoutPark = _s4.SamePriceThroughout;
+                gameState.SamePriceThroughoutPark = _s4.SamePriceThroughout;
             }
         }
 
diff --git a/src/openrct2/rct2/S6Importer.cpp b/src/openrct2/rct2/S6Importer.cpp
index 36f8b5e86a..0416d109e9 100644
--- a/src/openrct2/rct2/S6Importer.cpp
+++ b/src/openrct2/rct2/S6Importer.cpp
@@ -403,7 +403,8 @@ namespace RCT2
             // Pad013587FC
             gParkRatingCasualtyPenalty = _s6.ParkRatingCasualtyPenalty;
             gameState.MapSize = { _s6.MapSize, _s6.MapSize };
-            gSamePriceThroughoutPark = _s6.SamePriceThroughout | (static_cast<uint64_t>(_s6.SamePriceThroughoutExtended) << 32);
+            gameState.SamePriceThroughoutPark = _s6.SamePriceThroughout
+                | (static_cast<uint64_t>(_s6.SamePriceThroughoutExtended) << 32);
             gameState.SuggestedGuestMaximum = _s6.SuggestedMaxGuests;
             gameState.ScenarioParkRatingWarningDays = _s6.ParkRatingWarningDays;
             gLastEntranceStyle = _s6.LastEntranceStyle;
diff --git a/src/openrct2/ride/ShopItem.cpp b/src/openrct2/ride/ShopItem.cpp
index 1dd91d92ed..f85620c1a2 100644
--- a/src/openrct2/ride/ShopItem.cpp
+++ b/src/openrct2/ride/ShopItem.cpp
@@ -9,19 +9,20 @@
 
 #include "ShopItem.h"
 
+#include "../GameState.h"
 #include "../common.h"
 #include "../entity/Guest.h"
 #include "../localisation/StringIds.h"
 #include "../ride/RideEntry.h"
 #include "../sprites.h"
 
+using namespace OpenRCT2;
+
 ShopItem& operator++(ShopItem& d, int)
 {
     return d = (d == ShopItem::Count) ? ShopItem::Balloon : ShopItem(EnumValue(d) + 1);
 }
 
-uint64_t gSamePriceThroughoutPark;
-
 // clang-format off
 /** rct2: 0x00982164 (cost, base value, hot and cold value); 0x00982358 (default price) */
 constexpr ShopItemDescriptor ShopItems[EnumValue(ShopItem::Count)] = {
@@ -146,7 +147,7 @@ money64 ShopItemGetCommonPrice(Ride* forRide, const ShopItem shopItem)
 
 bool ShopItemHasCommonPrice(const ShopItem shopItem)
 {
-    return (gSamePriceThroughoutPark & EnumToFlag(shopItem)) != 0;
+    return (GetGameState().SamePriceThroughoutPark & EnumToFlag(shopItem)) != 0;
 }
 
 bool ShopItemDescriptor::IsFood() const
diff --git a/src/openrct2/ride/ShopItem.h b/src/openrct2/ride/ShopItem.h
index 241ecfae5f..9aa53277c5 100644
--- a/src/openrct2/ride/ShopItem.h
+++ b/src/openrct2/ride/ShopItem.h
@@ -128,8 +128,6 @@ enum
     SHOP_ITEM_FLAG_IS_RECOLOURABLE = (1 << 5),
 };
 
-extern uint64_t gSamePriceThroughoutPark;
-
 money64 ShopItemGetCommonPrice(Ride* forRide, const ShopItem shopItem);
 bool ShopItemHasCommonPrice(const ShopItem shopItem);