diff --git a/pkg/sdk/model/output/s3.go b/pkg/sdk/model/output/s3.go
index c55db0b4a..3a99a358b 100644
--- a/pkg/sdk/model/output/s3.go
+++ b/pkg/sdk/model/output/s3.go
@@ -127,8 +127,8 @@ type S3OutputConfig struct {
 	GrantFullControl string `json:"grant_full_control,omitempty"`
 	// The length of `%{hex_random}` placeholder(4-16)
 	HexRandomLength string `json:"hex_random_length,omitempty"`
-	// The format of S3 object keys (default: %{path}%{time_slice}_%{index}.%{file_extension})
-	S3ObjectKeyFormat string `json:"s3_object_key_format,omitempty"`
+	// The format of S3 object keys (default: %{path}%{time_slice}_%{uuid_hash}_%{index}.%{file_extension})
+	S3ObjectKeyFormat string `json:"s3_object_key_format,omitempty" plugin:"default:%{path}%{time_slice}_%{uuid_hash}_%{index}.%{file_extension}"`
 	// S3 bucket name
 	S3Bucket string `json:"s3_bucket"`
 	// Archive format on S3
diff --git a/pkg/sdk/model/output/s3_test.go b/pkg/sdk/model/output/s3_test.go
index b8bb50351..5c763d878 100644
--- a/pkg/sdk/model/output/s3_test.go
+++ b/pkg/sdk/model/output/s3_test.go
@@ -39,6 +39,7 @@ buffer:
     @id test
     path logs/${tag}/%Y/%m/%d/
     s3_bucket logging-amazon-s3
+    s3_object_key_format %{path}%{time_slice}_%{uuid_hash}_%{index}.%{file_extension}
     s3_region eu-central-1
     <buffer tag,time>
       @type file
diff --git a/pkg/sdk/model/render/fluent_test.go b/pkg/sdk/model/render/fluent_test.go
index b9c58acf0..abc8d4c8d 100644
--- a/pkg/sdk/model/render/fluent_test.go
+++ b/pkg/sdk/model/render/fluent_test.go
@@ -479,6 +479,7 @@ func TestRenderS3(t *testing.T) {
                         @id test
 						path /var/buffer
 						s3_bucket test_bucket
+                                                s3_object_key_format %{path}%{time_slice}_%{uuid_hash}_%{index}.%{file_extension}
 						<buffer tag,time>
 						@type file
 						path asd
@@ -502,6 +503,7 @@ func TestRenderS3(t *testing.T) {
                         @id test
 						path /var/buffer
 						s3_bucket test_bucket
+                                                s3_object_key_format %{path}%{time_slice}_%{uuid_hash}_%{index}.%{file_extension}
 						<instance_profile_credentials>
 						</instance_profile_credentials>`,
 		},
@@ -519,6 +521,7 @@ func TestRenderS3(t *testing.T) {
                         @id test
 						path /var/buffer
 						s3_bucket test_bucket
+                                                s3_object_key_format %{path}%{time_slice}_%{uuid_hash}_%{index}.%{file_extension}
 						<shared_credentials>
 							path e
 							profile_name f