diff --git a/sdk/storage/azure-storage-blobs/CHANGELOG.md b/sdk/storage/azure-storage-blobs/CHANGELOG.md
index df25b65af..ef06c5d3e 100644
--- a/sdk/storage/azure-storage-blobs/CHANGELOG.md
+++ b/sdk/storage/azure-storage-blobs/CHANGELOG.md
@@ -5,6 +5,7 @@
 ### Breaking Changes
 
 - Removed `Azure::Storage::Blobs::PackageVersion`.
+- Renamed `GetUserDelegationKeyOptions::startsOn` to `GetUserDelegationKeyOptions::StartsOn`.
 
 ## 12.0.0-beta.9 (2021-03-23)
 
diff --git a/sdk/storage/azure-storage-blobs/inc/azure/storage/blobs/blob_options.hpp b/sdk/storage/azure-storage-blobs/inc/azure/storage/blobs/blob_options.hpp
index 8a07d32c3..c4eb73d2a 100644
--- a/sdk/storage/azure-storage-blobs/inc/azure/storage/blobs/blob_options.hpp
+++ b/sdk/storage/azure-storage-blobs/inc/azure/storage/blobs/blob_options.hpp
@@ -193,7 +193,7 @@ namespace Azure { namespace Storage { namespace Blobs {
      * @brief Start time for the key's validity. The time should be specified in UTC, and
      * will be truncated to second.
      */
-    Azure::DateTime startsOn = std::chrono::system_clock::now();
+    Azure::DateTime StartsOn = std::chrono::system_clock::now();
   };
 
   /**
diff --git a/sdk/storage/azure-storage-blobs/src/blob_service_client.cpp b/sdk/storage/azure-storage-blobs/src/blob_service_client.cpp
index 0b8f18207..2ae6a9f7c 100644
--- a/sdk/storage/azure-storage-blobs/src/blob_service_client.cpp
+++ b/sdk/storage/azure-storage-blobs/src/blob_service_client.cpp
@@ -136,7 +136,7 @@ namespace Azure { namespace Storage { namespace Blobs {
       const Azure::Core::Context& context) const
   {
     _detail::BlobRestClient::Service::GetUserDelegationKeyOptions protocolLayerOptions;
-    protocolLayerOptions.StartsOn = options.startsOn;
+    protocolLayerOptions.StartsOn = options.StartsOn;
     protocolLayerOptions.ExpiresOn = expiresOn;
     return _detail::BlobRestClient::Service::GetUserDelegationKey(
         *m_pipeline, m_serviceUrl, protocolLayerOptions, _internal::WithReplicaStatus(context));
diff --git a/sdk/storage/azure-storage-files-datalake/CHANGELOG.md b/sdk/storage/azure-storage-files-datalake/CHANGELOG.md
index fe99d7508..a8ce47582 100644
--- a/sdk/storage/azure-storage-files-datalake/CHANGELOG.md
+++ b/sdk/storage/azure-storage-files-datalake/CHANGELOG.md
@@ -5,6 +5,7 @@
 ### Breaking Changes
 
 - Removed `Azure::Storage::Files::DataLake::PackageVersion`.
+- Renamed `GetUserDelegationKeyOptions::startsOn` to `GetUserDelegationKeyOptions::StartsOn`.
 
 ### Bug Fixes