diff --git a/steamtinkerlaunch b/steamtinkerlaunch
index da4a580d..8db40590 100755
--- a/steamtinkerlaunch
+++ b/steamtinkerlaunch
@@ -11315,7 +11315,7 @@ function setGameScopeVars {
 	function getGameScopeGeneralOpts {
 		# GameScope Show Resolution (corresponds to -W, -H options, uppercase) -- Actual GameScope window size -- Dropdown
 		if [ -z "$GSSHWRES" ]; then
-			if ! grep -qw "\-w" <<< "$GAMESCOPE_ARGS" || ! grep -qw "\-h" <<< "$GAMESCOPE_ARGS"; then
+			if ! grep -qw "\-W" <<< "$GAMESCOPE_ARGS" || ! grep -qw "\-H" <<< "$GAMESCOPE_ARGS"; then
 				GSSHWRES="1280x720"
 			else
 				GSSHWRES="$(tr ' ' '\n' <<< "$GAMESCOPE_ARGS" | grep -wA1 "\-W" | tail -n1)x$(tr ' ' '\n' <<< "$GAMESCOPE_ARGS" | grep -wA1 "\-H" | tail -n1)"