diff --git a/src/platform/linux/kmsgrab.cpp b/src/platform/linux/kmsgrab.cpp
index 3b9257b..214e262 100644
--- a/src/platform/linux/kmsgrab.cpp
+++ b/src/platform/linux/kmsgrab.cpp
@@ -523,8 +523,8 @@ public:
         if(monitor != std::end(pos->crtc_to_monitor)) {
           auto &viewport = monitor->second.viewport;
 
-          width    = viewport.width;
-          height   = viewport.height;
+          width    = viewport.height; // owokitty mod: hardcoded swap height and width for Steam Deck
+          height   = viewport.width;  // owokitty mod: hardcoded swap height and width for Steam Deck
           offset_x = viewport.offset_x;
           offset_y = viewport.offset_y;
         }