diff --git a/tools/check_xep_versions.sh b/tools/check_xep_versions.sh
index c22781aaa..60c5fa529 100755
--- a/tools/check_xep_versions.sh
+++ b/tools/check_xep_versions.sh
@@ -7,7 +7,7 @@ check_xep()
[ -f $BASE/doc/$xep ] || curl -s -o $BASE/doc/$xep https://xmpp.org/extensions/$xep.html
title=$(sed '/
/!d;s/.*\(.*\)<\/title>.*/\1/' $BASE/doc/$xep)
vsn=$(grep -A1 Version $BASE/doc/$xep | sed '//!d;q' | sed 's/.*>\(.*\)<.*/\1/')
- imp=$(grep "{xep, $int," $BASE/src/* | sed "s/.*src\/\(.*\).erl.*'\([0-9.-]*\)'.*/\1 \2/")
+ imp=$(grep "{xep, $int," $BASE/src/* | sed "s/.*src\/\(.*\).erl.*[0-9], '\([0-9.-]*\)'.*/\1 \2/")
[ "$imp" == "" ] && imp="NA 0.0"
echo "$title;$vsn;${imp/ /;}"
}