diff --git a/src/cc/prices.cpp b/src/cc/prices.cpp
index d1fc1aba9..bb77c8f30 100644
--- a/src/cc/prices.cpp
+++ b/src/cc/prices.cpp
@@ -322,7 +322,7 @@ int32_t prices_syntheticvec(std::vector<uint16_t> &vec,std::vector<std::string>
             return(-3);
         }
         depth -= need;
-        std::cerr << "opcode=" << opcode << " opstr=" << opstr << " depth-=need=" << depth << std::endl;
+        std::cerr << "opcode=" << opcode << " opstr=" << opstr << " need=" << need << " depth-=need=" << depth << std::endl;
         if ((opcode & KOMODO_PRICEMASK) != PRICES_WEIGHT) { // skip weight
             depth++;                                          // increase operands count
             std::cerr << "depth++=" << depth << std::endl;