diff --git a/src/libs/PersonalDetailsUtils.ts b/src/libs/PersonalDetailsUtils.ts
index a881dd411221..55aee10e611a 100644
--- a/src/libs/PersonalDetailsUtils.ts
+++ b/src/libs/PersonalDetailsUtils.ts
@@ -64,7 +64,7 @@ function getPersonalDetailsByIDs(accountIDs: number[], currentUserAccountID: num
  */
 function getAccountIDsByLogins(logins: string[]): number[] {
     return logins.reduce<number[]>((foundAccountIDs, login) => {
-        const currentDetail = personalDetails.find((detail) => detail?.login === login);
+        const currentDetail = personalDetails.find((detail) => detail?.login === login?.toLowerCase());
         if (!currentDetail) {
             // generate an account ID because in this case the detail is probably new, so we don't have a real accountID yet
             foundAccountIDs.push(UserUtils.generateAccountID(login));