diff --git a/api/http/handler/stacks/stack_update_git.go b/api/http/handler/stacks/stack_update_git.go
index da4df4e42..75713e14d 100644
--- a/api/http/handler/stacks/stack_update_git.go
+++ b/api/http/handler/stacks/stack_update_git.go
@@ -136,7 +136,6 @@ func (handler *Handler) stackUpdateGit(w http.ResponseWriter, r *http.Request) *
 	stack.UpdatedBy = user.Username
 	stack.UpdateDate = time.Now().Unix()
 
-	stack.GitConfig.Authentication = nil
 	if payload.RepositoryAuthentication {
 		password := payload.RepositoryPassword
 		if password == "" && stack.GitConfig != nil && stack.GitConfig.Authentication != nil {
@@ -150,6 +149,8 @@ func (handler *Handler) stackUpdateGit(w http.ResponseWriter, r *http.Request) *
 		if err != nil {
 			return &httperror.HandlerError{StatusCode: http.StatusInternalServerError, Message: "Unable to fetch git repository", Err: err}
 		}
+	} else {
+		stack.GitConfig.Authentication = nil
 	}
 
 	if payload.AutoUpdate != nil && payload.AutoUpdate.Interval != "" {