diff --git a/.changelog/d63b07a648e14dba902b708fc248f442.json b/.changelog/d63b07a648e14dba902b708fc248f442.json
new file mode 100644
index 00000000000..163fbfb9233
--- /dev/null
+++ b/.changelog/d63b07a648e14dba902b708fc248f442.json
@@ -0,0 +1,11 @@
+{
+    "id": "d63b07a6-48e1-4dba-902b-708fc248f442",
+    "type": "bugfix",
+    "description": "Allow serialization of headers with empty string for prefix headers",
+    "modules": [
+        "internal/protocoltest/awsrestjson",
+        "internal/protocoltest/restxml",
+        "service/dataexchange",
+        "service/s3"
+    ]
+}
\ No newline at end of file