diff --git a/clearml/config/default/sdk.conf b/clearml/config/default/sdk.conf
index 41df772f..22e91b21 100644
--- a/clearml/config/default/sdk.conf
+++ b/clearml/config/default/sdk.conf
@@ -64,7 +64,8 @@
         s3 {
             # S3 credentials, used for read/write access by various SDK elements
 
-            # Default, used for any bucket not specified below
+            # The following settings will be used for any bucket not specified below in the "credentials" section
+            # ---------------------------------------------------------------------------------------------------
             region: ""
             # Specify explicit keys
             key: ""
@@ -74,9 +75,10 @@
             # credential file and IAM role using metadata service. 
             # Refer to the latest Boto3 docs
             use_credentials_chain: false
-
             # Additional ExtraArgs passed to boto3 when uploading files. Can also be set per-bucket under "credentials".
             extra_args: {}
+            # ---------------------------------------------------------------------------------------------------
+
 
             credentials: [
                 # specifies key/secret credentials to use when handling s3 urls (read or write)