diff --git a/src/api/views.py b/src/api/views.py
index 10507fd7f..93d27a382 100644
--- a/src/api/views.py
+++ b/src/api/views.py
@@ -31,7 +31,7 @@ DOMAIN_API_MESSAGES = {
     ),
     "invalid": "Enter a domain using only letters, numbers, or hyphens (though we don't recommend using hyphens).",
     "success": "That domain is available!",
-    "error": GenericError.get_error_mapping(GenericErrorCodes.CANNOT_CONTACT_REGISTRY),
+    "error": GenericError.get_error_message(GenericErrorCodes.CANNOT_CONTACT_REGISTRY),
 }