diff --git a/Changelog.md b/Changelog.md
index 6af36756..f9ad653a 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -5,6 +5,7 @@ https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG.md) for the list o
 
 **10.7.0**
 - gitlab: upgrade CE to v10.7.0
+- ADD `GITLAB_SIDEKIQ_LOG_FORMAT`
 
 **10.6.4**
 - gitlab: upgrade CE to v10.6.4
diff --git a/README.md b/README.md
index cbdad52f..e9afa4ae 100644
--- a/README.md
+++ b/README.md
@@ -914,6 +914,7 @@ Below is the complete list of available options that can be used to customize yo
 | `SIDEKIQ_CONCURRENCY` | The number of concurrent sidekiq jobs to run. Defaults to `25` |
 | `SIDEKIQ_SHUTDOWN_TIMEOUT` | Timeout for sidekiq shutdown. Defaults to `4` |
 | `SIDEKIQ_MEMORY_KILLER_MAX_RSS` | Non-zero value enables the SidekiqMemoryKiller. Defaults to `1000000`. For additional options refer [Configuring the MemoryKiller](http://doc.gitlab.com/ce/operations/sidekiq_memory_killer.html) |
+| `GITLAB_SIDEKIQ_LOG_FORMAT` | Sidekiq log format that will be used. Defaults to `default` |
 | `DB_ADAPTER` | The database type. Possible values: `mysql2`, `postgresql`. Defaults to `postgresql`. |
 | `DB_ENCODING` | The database encoding. For `DB_ADAPTER` values `postresql` and `mysql2`, this parameter defaults to `unicode` and `utf8` respectively. |
 | `DB_COLLATION` | The database collation. Defaults to `utf8_general_ci` for `DB_ADAPTER` `mysql2`. This parameter is not supported for `DB_ADAPTER` `postresql` and will be removed. |
diff --git a/assets/runtime/config/gitlabhq/gitlab.yml b/assets/runtime/config/gitlabhq/gitlab.yml
index 02481124..23c2f28b 100644
--- a/assets/runtime/config/gitlabhq/gitlab.yml
+++ b/assets/runtime/config/gitlabhq/gitlab.yml
@@ -194,6 +194,11 @@ production: &base
     plain_url: "{{GITLAB_GRAVATAR_HTTP_URL}}"     # default: https://www.gravatar.com/avatar/%{hash}?s=%{size}&d=identicon
     ssl_url:   "{{GITLAB_GRAVATAR_HTTPS_URL}}"    # default: https://secure.gravatar.com/avatar/%{hash}?s=%{size}&d=identicon
 
+
+  ## Sidekiq
+  sidekiq:
+    log_format: {{GITLAB_SIDEKIQ_LOG_FORMAT}} # (json is also supported)
+
   ## Auxiliary jobs
   # Periodically executed jobs, to self-heal GitLab, do external synchronizations, etc.
   # Please read here for more information: https://github.com/ondrejbartas/sidekiq-cron#adding-cron-job
diff --git a/assets/runtime/env-defaults b/assets/runtime/env-defaults
index e2270d53..0abcfe85 100644
--- a/assets/runtime/env-defaults
+++ b/assets/runtime/env-defaults
@@ -57,6 +57,7 @@ REDIS_DB_NUMBER=${REDIS_DB_NUMBER:-0}
 SIDEKIQ_SHUTDOWN_TIMEOUT=${SIDEKIQ_SHUTDOWN_TIMEOUT:-4}
 SIDEKIQ_CONCURRENCY=${SIDEKIQ_CONCURRENCY:-25}
 SIDEKIQ_MEMORY_KILLER_MAX_RSS=${SIDEKIQ_MEMORY_KILLER_MAX_RSS:-1000000}
+GITLAB_SIDEKIQ_LOG_FORMAT=${GITLAB_SIDEKIQ_LOG_FORMAT:-default}
 
 ## UNICORN
 UNICORN_WORKERS=${UNICORN_WORKERS:-3}
diff --git a/assets/runtime/functions b/assets/runtime/functions
index 6c6a1f2b..5255aba3 100644
--- a/assets/runtime/functions
+++ b/assets/runtime/functions
@@ -294,7 +294,6 @@ gitlab_configure_monitoring() {
     GITLAB_MONITORING_SIDEKIQ_EXPORTER_ENABLED \
     GITLAB_MONITORING_SIDEKIQ_EXPORTER_ADDRESS \
     GITLAB_MONITORING_SIDEKIQ_EXPORTER_PORT
-
 }
 
 gitlab_configure_gitlab_workhorse() {
@@ -742,6 +741,10 @@ gitlab_configure_secrets() {
 gitlab_configure_sidekiq() {
   echo "Configuring gitlab::sidekiq..."
 
+  # configure gitlab sidekiq log format
+  update_template ${GITLAB_CONFIG} \
+    GITLAB_SIDEKIQ_LOG_FORMAT
+
   # configure sidekiq
   update_template /etc/supervisor/conf.d/sidekiq.conf \
     SIDEKIQ_CONCURRENCY \