try to provide empty defaults for some chains
diff --git a/heka/map.jinja b/heka/map.jinja
index e3fbb91..9b8eb7e 100644
--- a/heka/map.jinja
+++ b/heka/map.jinja
@@ -9,6 +9,10 @@
   - syslog
   service:
   - heka
+  filter: {}
+  splitter: {}
+  encoder: {}
+  decoder: {}
 RedHat:
   groups:
   - adm