diff --git a/src/cc/sudoku.cpp b/src/cc/sudoku.cpp
index b2ca38321..e77455352 100644
--- a/src/cc/sudoku.cpp
+++ b/src/cc/sudoku.cpp
@@ -480,7 +480,7 @@ void sudoku_gen(uint8_t key32[32],uint8_t unsolved[9][9],uint32_t srandi)
 // ./komodod -ac_name=SUDOKU -ac_supply=1000000 -pubkey=<yourpubkey> -addnode=5.9.102.210 -gen -genproclimit=1 -ac_cclib=sudoku -ac_perc=10000000 -ac_reward=100000000 -ac_cc=60000 -ac_script=2ea22c80203d1579313abe7d8ea85f48c65ea66fc512c878c0d0e6f6d54036669de940febf8103120c008203000401cc &
 // cclib "gen" 17 "1"
 // 5d13c1ad80daf37215c74809a36720c2ada90bacadb2e10bf0866092ce558432
-// cclib "txidinfo" 17 \"[5d13c1ad80daf37215c74809a36720c2ada90bacadb2e10bf0866092ce558432]\"
+// cclib "txidinfo" 17 \"{"txid":"5d13c1ad80daf37215c74809a36720c2ada90bacadb2e10bf0866092ce558432"}\"
 
 CScript sudoku_genopret(uint8_t unsolved[9][9])
 {
@@ -534,9 +534,10 @@ UniValue sudoku_txidinfo(uint64_t txfee,struct CCcontract_info *cp,cJSON *params
     UniValue result(UniValue::VOBJ);
     if ( params != 0 )
     {
-        char str[65]; bits256 txid;
-        txid = jbits256(params,"txid");
-        printf("txid.(%s)\n",bits256_str(str,txid));
+        char str[65]; bits256 _txid; uint256 txid;
+        _txid = jbits256(params,(char *)"txid");
+        memcpy(&txid,*_txid,sizeof(txid));
+        printf("txid.(%s)\n",txid.GetHex().c_str());
     }
     result.push_back(Pair("result","success"));
     result.push_back(Pair("name","sudoku"));