--- fbterm-1.7/src/lib/vterm.cpp.orig	2010-10-06 08:23:08.000000000 +0400
+++ fbterm-1.7/src/lib/vterm.cpp	2015-10-23 15:08:22.247733126 +0300
@@ -445,7 +445,7 @@ void VTerm::do_normal_char()
 		changed_line(cursor_y, cursor_x, width - 1);
 
 		u16 step = dw ? 2 : 1;
-		for (u16 i = width - step - 1; i >= cursor_x; i--) {
+		for (s32 i = width - step - 1; i >= cursor_x; i--) {
 			text[yp + i + step] = text[yp + i];
 			attrs[yp + i + step] = attrs[yp + i];
 		}