diff --git a/src/protocols/rdp/compat/winpr-stream.h b/src/protocols/rdp/compat/winpr-stream.h
index acefa68b..d60b030e 100644
--- a/src/protocols/rdp/compat/winpr-stream.h
+++ b/src/protocols/rdp/compat/winpr-stream.h
@@ -63,6 +63,8 @@
 #define Stream_GetPointer              stream_get_mark
 #define Stream_EnsureRemainingCapacity stream_check_size
 #define Stream_Write                   stream_write
+#define Stream_Zero                    stream_write_zero
+#define Stream_Fill                    stream_set_byte
 #define Stream_GetPosition             stream_get_pos
 #define Stream_SetPosition             stream_set_pos
 #define Stream_SetPointer              stream_set_mark
diff --git a/src/protocols/rdp/guac_rdpdr/rdpdr_fs_messages_dir_info.c b/src/protocols/rdp/guac_rdpdr/rdpdr_fs_messages_dir_info.c
index 203c1cf0..fbb88f2a 100644
--- a/src/protocols/rdp/guac_rdpdr/rdpdr_fs_messages_dir_info.c
+++ b/src/protocols/rdp/guac_rdpdr/rdpdr_fs_messages_dir_info.c
@@ -100,7 +100,7 @@ void guac_rdpdr_fs_process_query_both_directory_info(guac_rdpdr_device* device,
 
     /* Apparently, the reserved byte here must be skipped ... */
 
-    Stream_Seek(output_stream, 24); /* ShortName */
+    Stream_Zero(output_stream, 24); /* FileName */
     Stream_Write(output_stream, utf16_entry_name, utf16_length); /* FileName */
 
     svc_plugin_send((rdpSvcPlugin*) device->rdpdr, output_stream);