diff --git a/CHANGELOG.next.toml b/CHANGELOG.next.toml
index 1672dc0962..85454148c1 100644
--- a/CHANGELOG.next.toml
+++ b/CHANGELOG.next.toml
@@ -158,7 +158,7 @@ List of changes:
 
 - Core codegen code
   - Add sensitive warning
-  - Add `serde` attributes 
+  - Add `serde` attributes
   - Import `serde` crate to enable `serde(skip)` on some namespaces
   - Add `serde` crate behind unstable feature gate on `Cargo.toml`
 
@@ -173,7 +173,7 @@ meta = { "breaking" = false, "tada" = false, "bug" = false, "target" = "client"
 message = """
 - SDK
     - Implements `serde` support as described in RFC 30
-    
+
 - rust runtime
   - Implements serde support to `number`, `blob`, `document`, `date time` and `error type`.
   - `&'static str` on Error type is replaced with `Cow` to allow `serde` support. No breaking changes are introduced.
diff --git a/rust-runtime/aws-smithy-types/src/document.rs b/rust-runtime/aws-smithy-types/src/document.rs
index c414af20f0..9515d26c2d 100644
--- a/rust-runtime/aws-smithy-types/src/document.rs
+++ b/rust-runtime/aws-smithy-types/src/document.rs
@@ -4,14 +4,12 @@
  */
 
 use crate::Number;
-use std::collections::HashMap;
-#[cfg(
-    any(
-        all(aws_sdk_unstable, feature = "serde-deserialize"),
-        all(aws_sdk_unstable, feature = "serde-serialize")
-    )
-)]
+#[cfg(any(
+    all(aws_sdk_unstable, feature = "serde-deserialize"),
+    all(aws_sdk_unstable, feature = "serde-serialize")
+))]
 use serde;
+use std::collections::HashMap;
 /* ANCHOR: document */
 
 /// Document Type
diff --git a/rust-runtime/aws-smithy-types/test_data/serialize_document.json b/rust-runtime/aws-smithy-types/test_data/serialize_document.json
index 315acc50f6..dcbac2986a 100644
--- a/rust-runtime/aws-smithy-types/test_data/serialize_document.json
+++ b/rust-runtime/aws-smithy-types/test_data/serialize_document.json
@@ -40,4 +40,4 @@
         true,
         false
     ]
-}
\ No newline at end of file
+}