diff --git a/src/fe-text/gui-entry.c b/src/fe-text/gui-entry.c
index 8ff7e485..d1cc8811 100644
--- a/src/fe-text/gui-entry.c
+++ b/src/fe-text/gui-entry.c
@@ -654,7 +654,7 @@ void gui_entry_insert_char(GUI_ENTRY_REC *entry, unichar chr)
 	if (chr == 0 || chr == 13 || chr == 10)
 		return; /* never insert NUL, CR or LF characters */
 
-	if (entry->utf8 && entry->pos == 0 && i_wcwidth(chr) == 0)
+	if (entry->utf8 && entry->pos == 0 && unichar_isprint(chr) && i_wcwidth(chr) == 0)
 		return;
 
 	gui_entry_redraw_from(entry, entry->pos);