diff --git a/src/Squidex.Infrastructure/StringExtensions.cs b/src/Squidex.Infrastructure/StringExtensions.cs
index a23982355..af47c2d17 100644
--- a/src/Squidex.Infrastructure/StringExtensions.cs
+++ b/src/Squidex.Infrastructure/StringExtensions.cs
@@ -46,6 +46,7 @@ namespace Squidex.Infrastructure
             ['Å'] = "A",
             ['Æ'] = "AE",
             ['Ç'] = "C",
+            ['Ə'] = "E",
             ['È'] = "E",
             ['É'] = "E",
             ['Ê'] = "E",
@@ -77,6 +78,7 @@ namespace Squidex.Infrastructure
             ['å'] = "a",
             ['æ'] = "ae",
             ['ç'] = "c",
+            ['ə'] = "e",
             ['è'] = "e",
             ['é'] = "e",
             ['ê'] = "e",