diff --git a/zenith-openrpc.json b/zenith-openrpc.json
index 30b7021..53cb005 100644
--- a/zenith-openrpc.json
+++ b/zenith-openrpc.json
@@ -132,6 +132,7 @@
       ],
       "errors": [
         { "$ref": "#/components/errors/ZebraNotAvailable" },
+        { "$ref": "#/components/errors/ZenithBusy" },
         { "$ref": "#/components/errors/DuplicateName" }
       ]
     },
@@ -228,6 +229,7 @@
       "errors": [
         { "$ref": "#/components/errors/ZebraNotAvailable" },
         { "$ref": "#/components/errors/DuplicateName" },
+        { "$ref": "#/components/errors/ZenithBusy" },
         { "$ref": "#/components/errors/InvalidWallet" }
       ]
     },
@@ -444,6 +446,7 @@
       ],
       "errors": [
         { "$ref": "#/components/errors/InvalidAccount" },
+        { "$ref": "#/components/errors/ZenithBusy" },
         { "$ref": "#/components/errors/DuplicateName" }
       ]
     },
@@ -646,6 +649,7 @@
       ],
       "errors": [
         { "$ref": "#/components/errors/ZebraNotAvailable" },
+        { "$ref": "#/components/errors/ZenithBusy" },
         { "$ref": "#/components/errors/InvalidAccount" }
       ]
     },
@@ -886,6 +890,10 @@
       "InvalidRecipient": {
         "code": -32011,
         "message": "The provided recipient address is not valid."
+      },
+      "ZenithBusy": {
+        "code": -32012,
+        "message": "The Zenith server is syncing, please try again later."
       }
     }
   }