diff --git a/UnleashedRecomp/ui/game_window.cpp b/UnleashedRecomp/ui/game_window.cpp
index 3ed5fbb1..cc25ab61 100644
--- a/UnleashedRecomp/ui/game_window.cpp
+++ b/UnleashedRecomp/ui/game_window.cpp
@@ -378,6 +378,11 @@ SDL_Rect GameWindow::GetDimensions()
     return rect;
 }
 
+void GameWindow::GetSizeInPixels(int *w, int *h)
+{
+    SDL_GetWindowSizeInPixels(s_pWindow, w, h);
+}
+
 void GameWindow::SetDimensions(int w, int h, int x, int y)
 {
     s_width = w;
diff --git a/UnleashedRecomp/ui/game_window.h b/UnleashedRecomp/ui/game_window.h
index 5f51b2fd..bd0cb9a8 100644
--- a/UnleashedRecomp/ui/game_window.h
+++ b/UnleashedRecomp/ui/game_window.h
@@ -37,6 +37,7 @@ public:
     static bool IsMaximised();
     static EWindowState SetMaximised(bool isEnabled);
     static SDL_Rect GetDimensions();
+    static void GetSizeInPixels(int *w, int *h);
     static void SetDimensions(int w, int h, int x = SDL_WINDOWPOS_CENTERED, int y = SDL_WINDOWPOS_CENTERED);
     static void ResetDimensions();
     static uint32_t GetWindowFlags();
diff --git a/UnleashedRecomp/ui/options_menu.cpp b/UnleashedRecomp/ui/options_menu.cpp
index b348d82a..a16252d1 100644
--- a/UnleashedRecomp/ui/options_menu.cpp
+++ b/UnleashedRecomp/ui/options_menu.cpp
@@ -1121,17 +1121,25 @@ static void DrawConfigOption(int32_t rowIndex, float yOffset, ConfigDef<T>* conf
     {
         if (config == &Config::WindowSize)
         {
-            auto displayModes = GameWindow::GetDisplayModes();
-
-            if (config->Value >= 0 && config->Value < displayModes.size())
+            if (Config::Fullscreen)
             {
-                auto& displayMode = displayModes[config->Value];
-
-                valueText = fmt::format("{}x{}", displayMode.w, displayMode.h);
+                int displayW, displayH;
+                GameWindow::GetSizeInPixels(&displayW, &displayH);
+                valueText = fmt::format("{}x{}", displayW, displayH);
             }
             else
             {
-                valueText = fmt::format("{}x{}", GameWindow::s_width, GameWindow::s_height);
+                auto displayModes = GameWindow::GetDisplayModes();
+                if (config->Value >= 0 && config->Value < displayModes.size())
+                {
+                    auto& displayMode = displayModes[config->Value];
+
+                    valueText = fmt::format("{}x{}", displayMode.w, displayMode.h);
+                }
+                else
+                {
+                    valueText = fmt::format("{}x{}", GameWindow::s_width, GameWindow::s_height);
+                }
             }
         }
         else if (config == &Config::Monitor)