diff --git a/src/rpc/mining.cpp b/src/rpc/mining.cpp
index 3b212dc0e..8c682592c 100644
--- a/src/rpc/mining.cpp
+++ b/src/rpc/mining.cpp
@@ -722,19 +722,16 @@ protected:
 
 UniValue submitblock(const JSONRPCRequest& request)
 {
+    // We allow 2 arguments for compliance with BIP22. Argument 2 is ignored.
     if (request.fHelp || request.params.size() < 1 || request.params.size() > 2) {
         throw std::runtime_error(
-            "submitblock \"hexdata\" ( \"jsonparametersobject\" )\n"
+            "submitblock \"hexdata\"  ( \"dummy\" )\n"
             "\nAttempts to submit new block to network.\n"
-            "The 'jsonparametersobject' parameter is currently ignored.\n"
             "See https://en.bitcoin.it/wiki/BIP_0022 for full specification.\n"
 
             "\nArguments\n"
             "1. \"hexdata\"        (string, required) the hex-encoded block data to submit\n"
-            "2. \"parameters\"     (string, optional) object of optional parameters\n"
-            "    {\n"
-            "      \"workid\" : \"id\"    (string, optional) if the server provided a workid, it MUST be included with submissions\n"
-            "    }\n"
+            "2. \"dummy\"          (optional) dummy value, for compatibility with BIP22. This value is ignored.\n"
             "\nResult:\n"
             "\nExamples:\n"
             + HelpExampleCli("submitblock", "\"mydata\"")
@@ -963,7 +960,7 @@ static const CRPCCommand commands[] =
     { "mining",             "getmininginfo",          &getmininginfo,          true,  {} },
     { "mining",             "prioritisetransaction",  &prioritisetransaction,  true,  {"txid","dummy","fee_delta"} },
     { "mining",             "getblocktemplate",       &getblocktemplate,       true,  {"template_request"} },
-    { "mining",             "submitblock",            &submitblock,            true,  {"hexdata","parameters"} },
+    { "mining",             "submitblock",            &submitblock,            true,  {"hexdata","dummy"} },
 
     { "generating",         "generate",               &generate,               true,  {"nblocks","maxtries"} },
     { "generating",         "generatetoaddress",      &generatetoaddress,      true,  {"nblocks","address","maxtries"} },