diff --git a/install b/install
index 5696b2b..ea43b00 100755
--- a/install
+++ b/install
@@ -60,8 +60,8 @@ python manage.py syncdb --noinput
 chown www-data:www-data ${GRAPHITE_STORAGE}/graphite.db
 
 # Add carbon system user and set permissions
-groupadd -g 999 carbon
-useradd -c "carbon user" -g 999 -u 999 -s /bin/false carbon
+groupadd -g 998 carbon
+useradd -c "carbon user" -g 998 -u 998 -s /bin/false carbon
 chmod 775 ${GRAPHITE_STORAGE}
 chown www-data:carbon ${GRAPHITE_STORAGE}
 chown -R carbon ${GRAPHITE_STORAGE}/whisper