diff --git a/safe/impact_functions/earthquake/earthquake_building_impact.py b/safe/impact_functions/earthquake/earthquake_building_impact.py
index <HASH>..<HASH> 100644
--- a/safe/impact_functions/earthquake/earthquake_building_impact.py
+++ b/safe/impact_functions/earthquake/earthquake_building_impact.py
@@ -30,7 +30,7 @@ class EarthquakeBuildingImpactFunction(FunctionProvider):
                               ('medium_threshold', 7),
                               ('high_threshold', 8),
                               ('postprocessors', OrderedDict([
-                              ('AggregationCategorical', {'on': False})]))
+                              ('AggregationCategorical', {'on': True})]))
                               ])
 
     def run(self, layers):
turned on aggregation categorical as default for eq building impact function