diff --git a/pdns-mysql/docker-entrypoint.sh b/pdns-mysql/docker-entrypoint.sh
index c231969..41014bb 100755
--- a/pdns-mysql/docker-entrypoint.sh
+++ b/pdns-mysql/docker-entrypoint.sh
@@ -136,6 +136,7 @@ done
 createDatabaseIfRequested
 initDatabase
 migrateDatabaseTo47
+initSuperslave
 
 if [ ${USE_EXISTING_CONFIG_FILE:-false} = 'false' ]; then 
   echo "(re-)generating config file from environment variables"
diff --git a/pdns-pgsql/docker-entrypoint.sh b/pdns-pgsql/docker-entrypoint.sh
index 9d160f8..1af437f 100755
--- a/pdns-pgsql/docker-entrypoint.sh
+++ b/pdns-pgsql/docker-entrypoint.sh
@@ -108,6 +108,7 @@ done
 
 createDatabaseIfRequested
 initDatabase
+initSuperslave
 
 unset PGPASSWORD