diff --git a/spec/_global_parameters.yaml b/spec/_global_parameters.yaml
index 751e2f1b8..160d1d241 100644
--- a/spec/_global_parameters.yaml
+++ b/spec/_global_parameters.yaml
@@ -10,18 +10,21 @@ components:
       description: Whether to pretty format the returned JSON response.
       schema:
         type: boolean
+        default: false
     human:
       name: human
       in: query
       description: Whether to return human readable values for statistics.
       schema:
         type: boolean
+        default: true
     error_trace:
       name: error_trace
       in: query
       description: Whether to include the stack trace of returned errors.
       schema:
         type: boolean
+        default: false
     source:
       name: source
       in: query