diff --git a/CHANGELOG.md b/CHANGELOG.md
index 26a69c366..02944f146 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,7 +11,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - File viewer in chats (Image/Animated Image/Video/Texts) with the option to export the file.
 - Accept/decline CLI commands.
 
-## 5.0.10 - undefined
+## 5.0.11 - udnefined
+
+### Fixed
+- Display of non-Ascii avatar
+
+## 5.0.10 - 2023-02-02
 
 ### Fixed
 - Remove blank notification when declining incoming call.
diff --git a/linphone-app/ui/modules/Linphone/Contact/Avatar.qml b/linphone-app/ui/modules/Linphone/Contact/Avatar.qml
index 822f00e55..9fe76041c 100644
--- a/linphone-app/ui/modules/Linphone/Contact/Avatar.qml
+++ b/linphone-app/ui/modules/Linphone/Contact/Avatar.qml
@@ -33,14 +33,15 @@ Item {
 	}
 	
 	function _computeInitials () {
+	// Do not use charAt from string because it doesn't support all UTF8 characters.
 		var result = username.match(_initialsRegex)
 		if (!result) {
-			return username.length > 0 ? username.charAt(0).toUpperCase() : ''
+			var usernameArray = Array.from(username)
+			return usernameArray.length > 0 ? usernameArray[0].toUpperCase() : ''
 		}
-		
-		return result[1].charAt(0).toUpperCase() + (
-					result[2] != null
-					? result[2].charAt(0).toUpperCase()
+		return Array.from(result[1])[0].toUpperCase() + (
+					result.length > 1 && result[2].length > 0
+					? Array.from(result[2])[0].toUpperCase()
 					: ''
 					)
 	}