diff --git a/Tusker/Views/Toast/ToastConfiguration.swift b/Tusker/Views/Toast/ToastConfiguration.swift
index e55f839e..7bc192cc 100644
--- a/Tusker/Views/Toast/ToastConfiguration.swift
+++ b/Tusker/Views/Toast/ToastConfiguration.swift
@@ -71,11 +71,15 @@ extension ToastConfiguration {
                     event.tags!["error_type"] = "invalid_response"
                 case .invalidModel(let error):
                     event.tags!["error_type"] = "invalid_model"
-                    event.tags!["underlying_error"] = String(describing: error)
+                    event.extra = [
+                        "underlying_error": String(describing: error)
+                    ]
                 case .mastodonError(let code, let error):
                     event.tags!["error_type"] = "mastodon_error"
                     event.tags!["response_code"] = "\(code)"
-                    event.tags!["underlying_error"] = error
+                    event.extra = [
+                        "underlying_error": String(describing: error)
+                    ]
                 default:
                     break
                 }