diff --git a/example_config.yaml b/example_config.yaml
index a52835c..9e94c19 100644
--- a/example_config.yaml
+++ b/example_config.yaml
@@ -5,9 +5,10 @@ schema:
   time_field: timestamp
   mappings:
     timestamp:
-      type: !datetime
-      formats:
-        - timestamp
-      indexed: true
-      stored: true
-      fast: true
+      type:
+        !datetime
+          formats:
+            - timestamp
+          indexed: true
+          stored: true
+          fast: true