diff --git a/dbbackup-cron b/dbbackup-cron
index f8dae27..ef9d0c7 100644
--- a/dbbackup-cron
+++ b/dbbackup-cron
@@ -1,3 +1,5 @@
+SHELL=/bin/sh
+PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
 #
 # run system backups
 #
diff --git a/dbbackup-docker-compose b/dbbackup-docker-compose
index 3f300a0..1d5cc13 100755
--- a/dbbackup-docker-compose
+++ b/dbbackup-docker-compose
@@ -136,13 +136,13 @@ delete_old() {
 do_backup() {
    FILE=$1
    CONTAINER=$2
-   VER=`$DC exec $CONTAINER pg_config --version`
+   VER=`$DC exec -T $CONTAINER pg_config --version`
    verbose "Postgres version $VER - echoing to backup: $FILE"
    echo "--" > $FILE
    echo "-- PostgreSQL Version: $VER" >> $FILE
    echo "--" >> $FILE
    echo "" >> $FILE
-   CMD="$DC exec $CONTAINER $DUMP_CMD"
+   CMD="$DC exec -T $CONTAINER $DUMP_CMD"
    verbose "doing database dump: $CMD"
    $CMD >> $FILE
 }