diff --git a/src/js/select2/diacritics.js b/src/js/select2/diacritics.js
index c99ae616..cfc3d7d3 100644
--- a/src/js/select2/diacritics.js
+++ b/src/js/select2/diacritics.js
@@ -262,6 +262,7 @@ define([
     '\u019F': 'O',
     '\uA74A': 'O',
     '\uA74C': 'O',
+    '\u0152': 'OE',
     '\u01A2': 'OI',
     '\uA74E': 'OO',
     '\u0222': 'OU',
@@ -671,6 +672,7 @@ define([
     '\uA74B': 'o',
     '\uA74D': 'o',
     '\u0275': 'o',
+    '\u0153': 'oe',
     '\u01A3': 'oi',
     '\u0223': 'ou',
     '\uA74F': 'oo',