diff --git a/src/mbyte.c b/src/mbyte.c
index f881275..65f796f 100644
--- a/src/mbyte.c
+++ b/src/mbyte.c
@@ -1973,8 +1973,10 @@
 	{0x205f, 0x205f, 0},
 	{0x2060, 0x27ff, 1},		/* punctuation and symbols */
 	{0x2070, 0x207f, 0x2070},	/* superscript */
-	{0x2080, 0x208f, 0x2080},	/* subscript */
-	{0x2983, 0x2998, 1},
+	{0x2080, 0x2094, 0x2080},	/* subscript */
+	{0x20a0, 0x27ff, 1},		/* all kinds of symbols */
+	{0x2800, 0x28ff, 0x2800},	/* braille */
+	{0x2900, 0x2998, 1},		/* arrows, brackets, etc. */
 	{0x29d8, 0x29db, 1},
 	{0x29fc, 0x29fd, 1},
 	{0x3000, 0x3000, 0},		/* ideographic space */