diff --git a/pcbnew/zones.h b/pcbnew/zones.h
index 8d39f23e2b..d071fac012 100644
--- a/pcbnew/zones.h
+++ b/pcbnew/zones.h
@@ -55,6 +55,7 @@ inline wxString PrintZoneConnection( ZONE_CONNECTION aConnection )
 {
     switch( aConnection )
     {
+    default:
     case ZONE_CONNECTION::INHERITED:   return _( "inherited" );
     case ZONE_CONNECTION::NONE:        return _( "none" );
     case ZONE_CONNECTION::THERMAL:     return _( "thermal reliefs" );