diff --git a/.repo/pkgver/firefox-nightly-en-gb.sh b/.repo/pkgver/firefox-nightly-en-gb.sh
index d65a857..d474a50 100755
--- a/.repo/pkgver/firefox-nightly-en-gb.sh
+++ b/.repo/pkgver/firefox-nightly-en-gb.sh
@@ -26,7 +26,7 @@ _lang="en-GB"
 CARCH=x86_64
 _base_url="https://ftp.mozilla.org/pub/${_name}/${_channel}"
 
-_version=$(curl "${CURL_OPTS[@]}" ${_base_url}/latest-mozilla-central-l10n/ | grep "${_lang}.linux-${CARCH}.checksums" | sort | tail -n 1 | sed "s/^.*>firefox-//; s/\.${_lang}.*//")
+_version=$(curl "${CURL_OPTS[@]}" ${_base_url}/latest-mozilla-central-l10n/ | grep "${_lang}.linux-${CARCH}.checksums" | sed "s/^.*>firefox-//; s/\.${_lang}.*//" | sort -n | tail -n 1)
 _build_id_raw="$(curl "${CURL_OPTS[@]}" "${_base_url}/latest-mozilla-central-l10n/${_name}-${_version}.${_lang}.linux-${CARCH}.checksums" | grep '.partial.mar' | cut -d' ' -f4 | grep -E -o '[[:digit:]]{14}' | sort | tail -n1)"
 declare -A _build_id
 _build_id=(