diff --git a/libs/surfaces/mackie/mackie_control_protocol.cc b/libs/surfaces/mackie/mackie_control_protocol.cc
index 7da976cab8..392888f0f5 100644
--- a/libs/surfaces/mackie/mackie_control_protocol.cc
+++ b/libs/surfaces/mackie/mackie_control_protocol.cc
@@ -1357,12 +1357,11 @@ MackieControlProtocol::pull_route_range (DownButtonList& down, RouteList& select
 
 			if ((*s)->number() == last_surface) {
 				ls = last_strip;
+				ls += 1;
 			} else {
 				ls = (*s)->n_strips ();
 			}
 
-			ls += 1;
-
 			DEBUG_TRACE (DEBUG::MackieControl, string_compose ("adding strips for surface %1 (%2 .. %3)\n",
 									   (*s)->number(), fs, ls));