diff --git a/duniterpy/api/bma/blockchain.py b/duniterpy/api/bma/blockchain.py
index 87ed3203eecc8fd3dddc8fa4f2b82fa2ec51d42f..1a2d3902431bcc34fcdfa86895d1c30a394db1a0 100644
--- a/duniterpy/api/bma/blockchain.py
+++ b/duniterpy/api/bma/blockchain.py
@@ -208,12 +208,18 @@ PARAMETERS_SCHEMA = {
             "sigQty": {
                 "type": "number"
             },
+            "sigReplay": {
+                "type": "number"
+            },
             "xpercent": {
                 "type": "number"
             },
             "msValidity": {
                 "type": "number"
             },
+            "msPeriod": {
+                "type": "number"
+            },
             "stepMax": {
                 "type": "number"
             },