diff --git a/src/panels/config/users/dialog-user-detail.ts b/src/panels/config/users/dialog-user-detail.ts
index 3809131a65..f8d10d5ab7 100644
--- a/src/panels/config/users/dialog-user-detail.ts
+++ b/src/panels/config/users/dialog-user-detail.ts
@@ -106,6 +106,7 @@ class DialogUserDetail extends LitElement {
                 .dir=${computeRTLDirection(this.hass)}
               >
                 <ha-switch
+                  .disabled=${user.system_generated}
                   .checked=${this._localOnly}
                   @change=${this._localOnlyChanged}
                 >