diff --git a/core/openapi-ex_app.json b/core/openapi-ex_app.json
index 2e346ca2316..ab5ea1526cd 100644
--- a/core/openapi-ex_app.json
+++ b/core/openapi-ex_app.json
@@ -960,6 +960,12 @@
                                         "nullable": true,
                                         "default": null,
                                         "description": "An error message if the task failed"
+                                    },
+                                    "userFacingErrorMessage": {
+                                        "type": "string",
+                                        "nullable": true,
+                                        "default": null,
+                                        "description": "An error message that will be shown to the user"
                                     }
                                 }
                             }
diff --git a/core/openapi-full.json b/core/openapi-full.json
index 805944296b7..76e7bf62c29 100644
--- a/core/openapi-full.json
+++ b/core/openapi-full.json
@@ -10906,6 +10906,12 @@
                                         "nullable": true,
                                         "default": null,
                                         "description": "An error message if the task failed"
+                                    },
+                                    "userFacingErrorMessage": {
+                                        "type": "string",
+                                        "nullable": true,
+                                        "default": null,
+                                        "description": "An error message that will be shown to the user"
                                     }
                                 }
                             }
diff --git a/openapi.json b/openapi.json
index e86802a938d..1e176df8527 100644
--- a/openapi.json
+++ b/openapi.json
@@ -14422,6 +14422,12 @@
                                         "nullable": true,
                                         "default": null,
                                         "description": "An error message if the task failed"
+                                    },
+                                    "userFacingErrorMessage": {
+                                        "type": "string",
+                                        "nullable": true,
+                                        "default": null,
+                                        "description": "An error message that will be shown to the user"
                                     }
                                 }
                             }