diff --git a/src/cc/sudoku.cpp b/src/cc/sudoku.cpp
index b69081065..ff48af50c 100644
--- a/src/cc/sudoku.cpp
+++ b/src/cc/sudoku.cpp
@@ -2957,7 +2957,7 @@ sudoku_minval(uint32_t timestamps[81])
 bool sudoku_validate(struct CCcontract_info *cp,int32_t height,Eval *eval,const CTransaction tx)
 {
     static char laststr[512];
-    CScript scriptPubKey; std::vector<uint8_t> vopret; uint8_t *script,e,f,funcid; int32_t i,errflag,dispflag,score,numvouts; char unsolved[82],solution[82],str[512]; uint32_t timestamps[81]; CTransaction vintx; uint256 hashBlock;
+    CScript scriptPubKey; std::vector<uint8_t> vopret; uint8_t *script,e,f,funcid; int32_t i,ind,errflag,dispflag,score,numvouts; char unsolved[82],solution[82],str[512]; uint32_t timestamps[81]; CTransaction vintx; uint256 hashBlock;
     if ( (numvouts= tx.vout.size()) > 1 )
     {
         scriptPubKey = tx.vout[numvouts-1].scriptPubKey;