diff --git a/google-cloud-storage/src/main/java/com/google/cloud/storage/DefaultBlobWriteSessionConfig.java b/google-cloud-storage/src/main/java/com/google/cloud/storage/DefaultBlobWriteSessionConfig.java
index 869be68e0d..67360ad17b 100644
--- a/google-cloud-storage/src/main/java/com/google/cloud/storage/DefaultBlobWriteSessionConfig.java
+++ b/google-cloud-storage/src/main/java/com/google/cloud/storage/DefaultBlobWriteSessionConfig.java
@@ -131,9 +131,6 @@ WriterFactory createFactory(Clock clock) {
 
   @InternalApi
   private static final class Factory implements WriterFactory {
-    private static final Decoder<WriteObjectResponse, BlobInfo>
-        WRITE_OBJECT_RESPONSE_BLOB_INFO_DECODER =
-            Conversions.grpc().blobInfo().compose(WriteObjectResponse::getResource);
 
     private final int chunkSize;
 
@@ -172,7 +169,7 @@ public WritableByteChannelSession<?, BlobInfo> writeSession(
                           .setStartAsync(startResumableWrite)
                           .build();
                     })),
-            WRITE_OBJECT_RESPONSE_BLOB_INFO_DECODER);
+            Conversions.grpc().blobInfo().compose(WriteObjectResponse::getResource));
       } else if (s instanceof StorageImpl) {
         StorageImpl json = (StorageImpl) s;