diff --git a/gtk2_ardour/ardour_ui2.cc b/gtk2_ardour/ardour_ui2.cc
index da8a30c39e..687508654b 100644
--- a/gtk2_ardour/ardour_ui2.cc
+++ b/gtk2_ardour/ardour_ui2.cc
@@ -61,7 +61,7 @@ static const gchar *psync_strings[] = {
 	0
 };
 
-static vector<const char *> positional_sync_strings;
+static vector<string> positional_sync_strings;
 
 int	
 ARDOUR_UI::setup_windows ()