diff --git a/server/user.go b/server/user.go
index 77a86d9..6e3fdc4 100644
--- a/server/user.go
+++ b/server/user.go
@@ -53,7 +53,7 @@ func (s *Server) AddUser(ctx context.Context, user *pbUser.UserAddRequest) (*pbU
 
 	// defaults to User Role, must update with greater privileges to change role
 	newUser := &model.User{
-		Username:               user.Username,
+		Username:               strings.ToLower(user.Username),
 		RoleID:                 thisRole,
 		FullName:               user.FullName,
 		FirstName:              user.FirstName,