--- a/js/src/make-source-package.sh
+++ b/js/src/make-source-package.sh
@@ -2,17 +2,17 @@
 
 # Find out ASAP if some command breaks here, because we're copying a lot of
 # files we don't actually maintain ourselves, and requirements could easily be
 # broken.
 set -e
 
 : ${MKDIR:=mkdir}
 : ${TAR:=tar}
-: ${AUTOCONF:=$(which autoconf-2.13 autoconf2.13 | head -1)}
+: ${AUTOCONF:=$(which autoconf-2.13 autoconf2.13 autoconf213 | head -1)}
 : ${SRCDIR:=$(cd $(dirname $0); pwd 2>/dev/null)}
 : ${MOZJS_NAME:=mozjs}
 # The place to gather files to be added to the tarball.
 : ${STAGING:=/tmp/mozjs-src-pkg}
 # The place to put the resulting tarball.
 : ${DIST:=/tmp}
 
 if [[ -f "$SRCDIR/../../config/milestone.txt" ]]; then