diff --git a/stream/servers/memory_stream.h b/stream/servers/memory_stream.h
index 29bc476fc..e8c1dfbd5 100644
--- a/stream/servers/memory_stream.h
+++ b/stream/servers/memory_stream.h
@@ -30,6 +30,7 @@ class MemoryStream : public Stream
     isSeekable = true;
     hasPosition = true;
     hasSize = true;
+    hasPtr = true;
   }
 
   MemoryStream()