diff --git a/templates/etc/td-agent/td-agent.conf b/templates/etc/td-agent/td-agent.conf
index ea809ef7..c22ea00a 100644
--- a/templates/etc/td-agent/td-agent.conf
+++ b/templates/etc/td-agent/td-agent.conf
@@ -38,7 +38,8 @@
   buffer_type file
   buffer_path /var/log/google-fluentd/buffers
   # Set the chunk limit conservatively to avoid exceeding the recommended
-  # chunk size of 5MB per write request.
+  # chunk size of 10MB per write request. The API request size can be a few
+  # times bigger than the raw log size.
   buffer_chunk_limit 512KB
   # Flush logs every 5 seconds, even if the buffer is not full.
   flush_interval 5s
diff --git a/templates/etc/td-agent/td-agent.conf.tmpl b/templates/etc/td-agent/td-agent.conf.tmpl
index ea809ef7..c22ea00a 100644
--- a/templates/etc/td-agent/td-agent.conf.tmpl
+++ b/templates/etc/td-agent/td-agent.conf.tmpl
@@ -38,7 +38,8 @@
   buffer_type file
   buffer_path /var/log/google-fluentd/buffers
   # Set the chunk limit conservatively to avoid exceeding the recommended
-  # chunk size of 5MB per write request.
+  # chunk size of 10MB per write request. The API request size can be a few
+  # times bigger than the raw log size.
   buffer_chunk_limit 512KB
   # Flush logs every 5 seconds, even if the buffer is not full.
   flush_interval 5s
diff --git a/windows-installer/fluent-template.conf b/windows-installer/fluent-template.conf
index c3ac67ac..15a16a93 100644
--- a/windows-installer/fluent-template.conf
+++ b/windows-installer/fluent-template.conf
@@ -31,7 +31,8 @@
   buffer_type file
   buffer_path /var/log/google-fluentd/buffers
   # Set the chunk limit conservatively to avoid exceeding the recommended
-  # chunk size of 5MB per write request.
+  # chunk size of 10MB per write request. The API request size can be a few
+  # times bigger than the raw log size.
   buffer_chunk_limit 512KB
   flush_interval 5s
   # Enforce some limit on the number of retries.