diff --git a/packcheck.sh b/packcheck.sh
index e44be50..1524964 100755
--- a/packcheck.sh
+++ b/packcheck.sh
@@ -909,8 +909,8 @@ ghcup_install() {
     # Determine GHCUP_ARCH
     os=$(uname -s -m)
     case "$os" in
-      "Linux x86_64"|"FreeBSD x86_64") GHCUP_ARCH="x86_64-linux" ;;
-      "Linux amd64"|"FreeBSD amd64") GHCUP_ARCH="aarch64-linux" ;;
+      "Linux x86_64") GHCUP_ARCH="x86_64-linux" ;;
+      "FreeBSD x86_64" | "FreeBSD amd64") GHCUP_ARCH=x86_64-portbld-freebsd
       "Darwin x86_64") GHCUP_ARCH="x86_64-apple-darwin" ;;
       "Darwin arm64") GHCUP_ARCH="aarch64-apple-darwin" ;;
       *) echo "Unknown OS/Arch: $os"; exit 1;;