diff --git a/src/phonetics/french/sonnex.js b/src/phonetics/french/sonnex.js
index 9bc69e4..518c681 100644
--- a/src/phonetics/french/sonnex.js
+++ b/src/phonetics/french/sonnex.js
@@ -72,7 +72,7 @@ const RULES = {
     ['ain', '1'],
     [/ain(.)(.*)$/, (v, cs) => {
       if (isVowel(v))
-        return ['E', v + cs];
+        return ['En', v + cs];
       return ['1', v + cs];
     }],
     ['ais', 'E'],