diff --git a/libs/surfaces/osc/osc.cc b/libs/surfaces/osc/osc.cc
index 808f88d289..94a1123f28 100644
--- a/libs/surfaces/osc/osc.cc
+++ b/libs/surfaces/osc/osc.cc
@@ -4567,7 +4567,7 @@ OSC::sel_expand (uint32_t state, lo_message msg)
 		s = sur->expand_strip;
 	} else {
 		sur->expand_enable = false;
-		s = _select;
+		s = boost::shared_ptr<Stripable> ();
 	}
 
 	return _strip_select (s, get_address (msg));