diff --git a/charts/fluentd-elasticsearch/Chart.yaml b/charts/fluentd-elasticsearch/Chart.yaml
index ab32f2d..7633f5d 100755
--- a/charts/fluentd-elasticsearch/Chart.yaml
+++ b/charts/fluentd-elasticsearch/Chart.yaml
@@ -1,6 +1,6 @@
 apiVersion: v2
 name: fluentd-elasticsearch
-version: 11.10.0
+version: 11.11.0
 appVersion: 3.2.0
 type: application
 home: https://www.fluentd.org/
diff --git a/charts/fluentd-elasticsearch/README.md b/charts/fluentd-elasticsearch/README.md
index 4513e06..3df6af3 100755
--- a/charts/fluentd-elasticsearch/README.md
+++ b/charts/fluentd-elasticsearch/README.md
@@ -70,7 +70,7 @@ The following table lists the configurable parameters of the Fluentd elasticsear
 | `awsSigningSidecar.network.remoteReadTimeoutSeconds` | AWS Sidecar socket read timeout when talking to ElasticSearch                  | `15`                                               |
 | `awsSigningSidecar.image.repository`                 | AWS signing sidecar repository image                                           | `abutaha/aws-es-proxy`                             |
 | `awsSigningSidecar.image.tag`                        | AWS signing sidecar repository tag                                             | `v1.0`                                             |
-| `awsSigningSidecar.args`                             | Additional command-line arguments for the AWS signing sidecar container        | `[]`                                             |
+| `awsSigningSidecar.args`                             | Additional command-line arguments for the AWS signing sidecar container        | `[]`                                               |
 | `elasticsearch.auth.enabled`                         | Elasticsearch Auth enabled                                                     | `false`                                            |
 | `elasticsearch.auth.user`                            | Elasticsearch Auth User                                                        | `null`                                             |
 | `elasticsearch.auth.password`                        | Elasticsearch Auth Password                                                    | `null`                                             |
@@ -124,10 +124,11 @@ The following table lists the configurable parameters of the Fluentd elasticsear
 | `elasticsearch.buffer.overflowAction`                | Elasticsearch Buffer over flow action                                          | `block`                                            |
 | `env`                                                | List of env vars that are added to the fluentd pods                            | `{}`                                               |
 | `fluentdArgs`                                        | Fluentd args                                                                   | `--no-supervisor -q`                               |
+| `fluentdLogFormat`                                   | Fluentd output log format in the default system.conf (either "text" or "json") | `text`                                             |
 | `secret`                                             | List of env vars that are set from secrets and added to the fluentd pods       | `[]`                                               |
 | `extraVolumeMounts`                                  | Mount extra volume, required to mount ssl certificates when ES has tls enabled | `[]`                                               |
 | `extraVolumes`                                       | Extra volume                                                                   | `[]`                                               |
-| `fluentConfDir`                                      | Specify where to mount fluentd location                                        | `/etc/fluent/config.d`                                         |
+| `fluentConfDir`                                      | Specify where to mount fluentd location                                        | `/etc/fluent/config.d`                             |
 | `hostLogDir.varLog`                                  | Specify where fluentd can find var log                                         | `/var/log`                                         |
 | `hostLogDir.dockerContainers`                        | Specify where fluentd can find logs for docker container                       | `/var/lib/docker/containers`                       |
 | `hostLogDir.libSystemdDir`                           | Specify where fluentd can find logs for lib Systemd                            | `/usr/lib64`                                       |
diff --git a/charts/fluentd-elasticsearch/templates/configmaps.yaml b/charts/fluentd-elasticsearch/templates/configmaps.yaml
index 56d49b9..bf0d66a 100644
--- a/charts/fluentd-elasticsearch/templates/configmaps.yaml
+++ b/charts/fluentd-elasticsearch/templates/configmaps.yaml
@@ -10,6 +10,9 @@ data:
   system.conf: |-
     <system>
       root_dir /tmp/fluentd-buffers/
+      <log>
+        format {{ .Values.fluentdLogFormat }}
+      </log>
     </system>
 {{- end }}
 
diff --git a/charts/fluentd-elasticsearch/values.yaml b/charts/fluentd-elasticsearch/values.yaml
index 5aabea0..953d331 100755
--- a/charts/fluentd-elasticsearch/values.yaml
+++ b/charts/fluentd-elasticsearch/values.yaml
@@ -151,6 +151,11 @@ elasticsearch:
 # by example you can add -vv to launch with trace log
 fluentdArgs: "--no-supervisor -q"
 
+# Specifies the output format of fluentd's own log messages. Set to
+# "json" to enable structured logging.
+# See https://docs.fluentd.org/deployment/logging#log-format
+fluentdLogFormat: "text"
+
 # If you want to add custom environment variables, use the env dict
 # You can then reference these in your config file e.g.:
 #     user "#{ENV['OUTPUT_USER']}"