diff --git a/src/regexp.c b/src/regexp.c
index cd7dc3f..b20e9c5 100644
--- a/src/regexp.c
+++ b/src/regexp.c
@@ -791,7 +791,7 @@
     "E\x71\x72\x73\x74",
     "I\x75\x76\x77\x78",
     "N\x69",
-    "O\xEB\xEC\xED\xEE\xEF",
+    "O\xEB\xEC\xED\xEE\xEF\x80",
     "U\xFB\xFC\xFD\xFE",
     "Y\xBA",
     "a\x42\x43\x44\x45\x46\x47",
@@ -799,7 +799,7 @@
     "e\x51\x52\x53\x54",
     "i\x55\x56\x57\x58",
     "n\x49",
-    "o\xCB\xCC\xCD\xCE\xCF",
+    "o\xCB\xCC\xCD\xCE\xCF\x70",
     "u\xDB\xDC\xDD\xDE",
     "y\x8D\xDF",
 };