diff --git a/index.js b/index.js
index 918d1a8e..e6bd1925 100644
--- a/index.js
+++ b/index.js
@@ -73,6 +73,7 @@ function is(x) {
         "تیرہ", // Urdu
         "tri ar ddeg", // Welsh
         "דרייַצן", // Yiddish,
+        "דרייצן", // Yiddish (without diacritics),
         "kumi na tatu", // Swahili
 
         //Imaginary 13's
diff --git a/test.js b/test.js
index c5d8fe05..bebfe8ef 100644
--- a/test.js
+++ b/test.js
@@ -66,4 +66,5 @@ tap.equal(is("тринадцять").thirteen(), true); // Ukrainian
 tap.equal(is("تیرہ").thirteen(), true); // Urdu
 tap.equal(is("tri ar ddeg").thirteen(), true); // Welsh
 tap.equal(is("דרייַצן").thirteen(), true); // Yiddish
+tap.equal(is("דרייצן").thirteen(), true); // Yiddish (without diacritics),
 tap.equal(is("kumi na tatu").thirteen(), true); // Swahili