diff --git a/log4j2-appender/src/test/resources/loki-config.yaml b/log4j2-appender/src/test/resources/loki-config.yaml
index aded6e8..bb01454 100644
--- a/log4j2-appender/src/test/resources/loki-config.yaml
+++ b/log4j2-appender/src/test/resources/loki-config.yaml
@@ -40,9 +40,6 @@ limits_config:
   reject_old_samples_max_age: 168h
   max_entries_limit_per_query: 10000
 
-chunk_store_config:
-  max_look_back_period: 0s
-
 table_manager:
   retention_deletes_enabled: false
   retention_period: 0s