diff --git a/src/routes/users/change_username.rs b/src/routes/users/change_username.rs
index 71ce5701..765d9f75 100644
--- a/src/routes/users/change_username.rs
+++ b/src/routes/users/change_username.rs
@@ -35,7 +35,7 @@ pub async fn req(
 
     let mut set = doc! {};
     if let Some(username) = &data.username {
-        if User::is_username_taken(&username).await? {
+        if (username.to_lowercase() != user.username.to_lowercase()) && User::is_username_taken(&username).await? {
             return Err(Error::UsernameTaken);
         }