diff --git a/fluent-logging/values.yaml b/fluent-logging/values.yaml
index 5b1c2816a..1f97503c4 100644
--- a/fluent-logging/values.yaml
+++ b/fluent-logging/values.yaml
@@ -303,7 +303,7 @@ conf:
         logstash_prefix: journal
         buffer_chunk_limit: 10M
         buffer_queue_limit: 32
-        flush_interval: 20s
+        flush_interval: 20
         max_retry_wait: 300
         disable_retry_limit: ""
         num_threads: 8
@@ -320,7 +320,7 @@ conf:
         logstash_prefix: kernel
         buffer_chunk_limit: 10M
         buffer_queue_limit: 32
-        flush_interval: 20s
+        flush_interval: 20
         max_retry_wait: 300
         disable_retry_limit: ""
         num_threads: 8
@@ -336,7 +336,7 @@ conf:
         logstash_format: true
         buffer_chunk_limit: 10M
         buffer_queue_limit: 32
-        flush_interval: 20s
+        flush_interval: 20
         max_retry_wait: 300
         disable_retry_limit: ""
         num_threads: 8