diff --git a/metadata/service/master/single.yml b/metadata/service/master/single.yml
index a0033f9..b1a0e67 100644
--- a/metadata/service/master/single.yml
+++ b/metadata/service/master/single.yml
@@ -10,6 +10,8 @@
   salt:
     master:
       enabled: true
+      source:
+        engine: pkg
       command_timeout: 5
       worker_threads: 2
-      base_environment: ${_param:salt_master_base_environment}
\ No newline at end of file
+      base_environment: ${_param:salt_master_base_environment}