diff --git a/src/eva/tests/config/testIodaObsSpaceAmsuaN19_TimeSeries.yaml b/src/eva/tests/config/testIodaObsSpaceAmsuaN19_TimeSeries.yaml
index 477ceb2..f907c7c 100644
--- a/src/eva/tests/config/testIodaObsSpaceAmsuaN19_TimeSeries.yaml
+++ b/src/eva/tests/config/testIodaObsSpaceAmsuaN19_TimeSeries.yaml
@@ -30,16 +30,16 @@ transforms:
 
 time_series:
 
-  begin_date: '2020-12-14T21:00:00'
-  final_date: '2020-12-15T03:00:00'
-  interval: 'PT6H'
+  - begin_date: '2020-12-14T21:00:00'
+    final_date: '2020-12-15T03:00:00'
+    interval: 'PT6H'
 
-  collection: experiment
-  variables:
-    - ObsValueMinusHofx::brightnessTemperature
-  aggregation_methods:
-    - mean
-  dimension: Location
+    collection: experiment
+    variables:
+      - ObsValueMinusHofx::brightnessTemperature
+    aggregation_methods:
+      - mean
+    dimension: Location
 
 graphics: