diff --git a/mongodb-crypt/src/main/com/mongodb/internal/crypt/capi/CAPIHelper.java b/mongodb-crypt/src/main/com/mongodb/internal/crypt/capi/CAPIHelper.java
index ba612e1d21..dd03c4792d 100644
--- a/mongodb-crypt/src/main/com/mongodb/internal/crypt/capi/CAPIHelper.java
+++ b/mongodb-crypt/src/main/com/mongodb/internal/crypt/capi/CAPIHelper.java
@@ -51,9 +51,7 @@ static BinaryHolder toBinary(final BsonDocument document) {
     }
 
     static RawBsonDocument toDocument(final mongocrypt_binary_t binary) {
-        ByteBuffer byteBuffer = toByteBuffer(binary);
-        byte[] bytes = new byte[byteBuffer.remaining()];
-        byteBuffer.get(bytes);
+        byte[] bytes = toByteArray(binary);
         return new RawBsonDocument(bytes);
     }