diff --git a/docs/usage/self-hosted-configuration.md b/docs/usage/self-hosted-configuration.md
index e842e566a4af88b6d02a280107cd8cdd565ca223..c2e3b518756c49b2e4a838c8424ff897419e7c3e 100644
--- a/docs/usage/self-hosted-configuration.md
+++ b/docs/usage/self-hosted-configuration.md
@@ -138,7 +138,7 @@ This configuration will be applied after all other environment variables so that
 
 Adds a custom prefix to the default Renovate sidecar Docker containers name and label.
 
-If this is set to `myprefix_` the final image name for `renovate/node` would be named `myprefix_node` instead of currently used `renovate_node` and be labeled `myprefix_child` instead of `renovate_child`.
+If this is set to `myprefix_` the final container created from `renovate/node` image would be named `myprefix_node` instead of currently used `renovate_node` and be labeled `myprefix_child` instead of `renovate_child`.
 
 Note that dangling containers will not be removed until Renovate is run with the same prefix again.
 
diff --git a/lib/config/definitions.ts b/lib/config/definitions.ts
index daf81de7c8cca1d9a28b233975691a16c9ba5de7..598f91dacbac71a10944361f9615ba3c92fe002e 100644
--- a/lib/config/definitions.ts
+++ b/lib/config/definitions.ts
@@ -267,7 +267,7 @@ const options: RenovateOptions[] = [
   {
     name: 'dockerChildPrefix',
     description:
-      'Change this value in order to add a prefix to the Renovate Docker sidecar image names and labels.',
+      'Change this value in order to add a prefix to the Renovate Docker sidecar container names and labels.',
     type: 'string',
     admin: true,
     default: 'renovate_',