diff --git a/steamtinkerlaunch b/steamtinkerlaunch
index 8093661f..d8b68a11 100755
--- a/steamtinkerlaunch
+++ b/steamtinkerlaunch
@@ -6,7 +6,7 @@
 PREFIX="/usr"
 PROGNAME="SteamTinkerLaunch"
 NICEPROGNAME="Steam Tinker Launch"
-PROGVERS="v12.12.20230217-1"
+PROGVERS="v12.12.20230217-4"
 PROGCMD="${0##*/}"
 SHOSTL="stl"
 GHURL="https://github.com"
@@ -17957,7 +17957,11 @@ function gameScopeArgs {
 	unset GAMESCOPEARGSARR
 
 	if [ "$1" != "$NON" ]; then
-		mapfile -d " " -t -O "${#GAMESCOPEARGSARR[@]}" GAMESCOPEARGSARR < <(printf '%s' "$ARGSTRING")
+		GSINARGS="$( echo "$ARGSTRING" | sed "s:--:\n--:g;s:\ -:\n-:g;s:\ ':\n':g" )"  # Turn incoming GameScope arguments into newline
+		readarray GSINARR<<< "$GSINARGS"
+		for GSARG in "${GSINARR[@]}"; do
+			GAMESCOPEARGSARR+=("$( echo "$GSARG" | xargs )")
+		done
 	fi
 
 	if [ "${#GAMESCOPEARGSARR[@]}" -ge 1 ]; then