diff --git a/src/modules/_Charset/tables.c b/src/modules/_Charset/tables.c
index e993e9f4b103b8ffc16ea7e24690d443300c3c1f..e4a1732b7666d47439c4a46d96688cdf7236e39a 100644
--- a/src/modules/_Charset/tables.c
+++ b/src/modules/_Charset/tables.c
@@ -1423,15 +1423,19 @@ static const UNICHAR map_ISO_IR_181[] = {
   0x00a0, 0x00ac, 0x238d, 0x238e, 0x25c7, 0x238f, 0x2390, 0x2391,
   0x2392, 0x00a9, 0x2264, 0x226a, 0x00ac, 0x00ad, 0x00ae, 0xfffd,
   0x00b0, 0x00b1, 0x00f7, 0x221e, 0x222b, 0x2026, 0x2260, 0x00b7,
-  0x2245, 0x2261, 0x2265, 0x226b, 0x2122, 0x2104, 0x2015, 0x2393,
+  0x2248, 0x2261, 0x2265, 0x226b, 0x2122, 0x2104, 0x2015, 0x2393,
   0x2030, 0x2190, 0xfffd, 0x0393, 0x0394, 0x22b2, 0x1401, 0x22b3,
   0x0398, 0x22c2, 0x2394, 0x039b, 0xfffd, 0xfffd, 0x039e, 0xfffd,
   0x03a0, 0x2192, 0xfffd, 0x03a3, 0xfffd, 0x03a5, 0x02a6, 0x00d7,
-  0x03a8, 0x03a9, 0x2395, 0x2300, 0x2220, 0x223f, 0x2248, 0x224b,
+  0x03a8, 0x03a9, 0x2395, 0x2300, 0x2220, 0x223f, 0xd800, 0xd803,
   0xfffd, 0x03b1, 0x03b2, 0x03b3, 0x03b4, 0x03f5, 0x03b6, 0x03b7,
   0x03b8, 0x03b9, 0x03ba, 0x03bb, 0x03bc, 0x03bd, 0x03be, 0xfffd,
   0x03c0, 0x03c1, 0xfffd, 0x03c3, 0x03c4, 0x03c5, 0x03d5, 0x03c7,
-  0x03c8, 0x03c9, 0x03d1, 0x03c6, 0x03b5, 0xfffd, 0xfffd, 0xfffd, };
+  0x03c8, 0x03c9, 0x03d1, 0x03c6, 0x03b5, 0xfffd, 0xfffd, 0xfffd,
+
+  0x223f, 0x0303, 0x0000,		/* AC MEDIUM-FREQUENCY RANGE */
+  0x223f, 0x0303, 0x0330, 0x0000,	/* AC HIGH-FREQUENCY RANGE */
+ };
 static const UNICHAR map_JIS_C6226_1978[] = {
   0x0020, 0x3001, 0x3002, 0x002c, 0x002e, 0x30fb, 0x003a, 0x003b,
   0x0021, 0x309b, 0x309c, 0x00b4, 0x0060, 0x00a8, 0x005e, 0x203e,