diff --git a/postgresql-script b/postgresql-script
index 566bab3..b4842da 100644
--- a/postgresql-script
+++ b/postgresql-script
@@ -43,7 +43,7 @@ cd ~
 case "$1" in
     start)
 	if [ ! -f $DATADIR/PG_VERSION ]; then
-	    LANG=${POSTGRES_LANG:-$LANG}
+	    test -n "$POSTGRES_LANG" && export LC_ALL="$POSTGRES_LANG"
             V=$(printf "%02d%02d" $(echo $VERSION|awk -F. '{print $1, $2}'))
 	    install -d -m 700 ${DATADIR} &&
 	    echo "Initializing PostgreSQL $VERSION at location ${DATADIR}"
diff --git a/postgresql.changes b/postgresql.changes
index 8d1f4a7..ff928b2 100644
--- a/postgresql.changes
+++ b/postgresql.changes
@@ -1,3 +1,15 @@
+-------------------------------------------------------------------
+Mon Apr 30 13:26:49 UTC 2018 - dimstar@opensuse.org
+
+- Require update-alternatives by postgresql: one of the main
+  scripts in use is install-alternatives, which calls u-a.
+
+-------------------------------------------------------------------
+Fri Feb  2 10:03:33 UTC 2018 - max@suse.com
+
+- Put POSTGRES_LANG into LC_ALL instead of LANG to retain the
+  previous behaviour of that variable (boo#1077027).
+
 -------------------------------------------------------------------
 Wed Jan 17 16:48:57 UTC 2018 - max@suse.com
 
diff --git a/postgresql.spec b/postgresql.spec
index ed6ce24..81a00db 100644
--- a/postgresql.spec
+++ b/postgresql.spec
@@ -38,6 +38,7 @@ Url:            https://www.postgresql.org/
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 Provides:       postgresql-noarch = %version-%release
 Requires:       postgresql-implementation
+Requires:       update-alternatives
 Recommends:     %defaultpackage
 BuildArch:      noarch
 Source0:        postgresql-init