diff --git a/eeschema/sch_plugins/kicad/sch_sexpr_plugin.cpp b/eeschema/sch_plugins/kicad/sch_sexpr_plugin.cpp
index c860d0f4e0..27423443d8 100644
--- a/eeschema/sch_plugins/kicad/sch_sexpr_plugin.cpp
+++ b/eeschema/sch_plugins/kicad/sch_sexpr_plugin.cpp
@@ -80,6 +80,7 @@ static void formatFill( OUTPUTFORMATTER* aFormatter, int aNestLevel, FILL_T aFil
 
     switch( aFillMode )
     {
+    default:
     case FILL_T::NO_FILL:                  fillType = "none";       break;
     case FILL_T::FILLED_SHAPE:             fillType = "outline";    break;
     case FILL_T::FILLED_WITH_BG_BODYCOLOR: fillType = "background"; break;