diff --git a/steamtinkerlaunch b/steamtinkerlaunch
index 95c7e76d..7e0f94ef 100755
--- a/steamtinkerlaunch
+++ b/steamtinkerlaunch
@@ -11351,8 +11351,8 @@ function setGameScopeVars {
 
 		# GameScope Internal Resolution (corresponds to -w, -h options, lowercase) -- Resolution that games see (defaults to 1280x720) -- Dropdown
 		# Although this is a combobox, we still use "num" as the `getGameScopeArg` type because we want numeric validation
-		GSINTRESARGWIDTH="$( getGameScopeArg "$GAMESCOPE_ARGS" "-W" "$GSINTRESARGWIDTH" "" "1280" "num")"
-		GSINTRESARGHEIGHT="$( getGameScopeArg "$GAMESCOPE_ARGS" "-H" "$GSINTRESARGHEIGHT" "" "720" "num")"
+		GSINTRESARGWIDTH="$( getGameScopeArg "$GAMESCOPE_ARGS" "-w" "$GSINTRESARGWIDTH" "" "1280" "num")"
+		GSINTRESARGHEIGHT="$( getGameScopeArg "$GAMESCOPE_ARGS" "-h" "$GSINTRESARGHEIGHT" "" "720" "num")"
 
 		GSINTRES="${GSINTRESARGWIDTH}x${GSINTRESARGHEIGHT}"