diff --git a/tui_main.c b/tui_main.c
index d525d05..39310aa 100644
--- a/tui_main.c
+++ b/tui_main.c
@@ -82,8 +82,6 @@ static Glyph_class glyph_class_of(Glyph glyph) {
   case 's':
   case 'W':
   case 'w':
-  case 'Z':
-  case 'z':
     return Glyph_class_movement;
   case '!':
   case ':':