diff --git a/src/cc/prices.cpp b/src/cc/prices.cpp
index 2fd7a60df..c302e6d73 100644
--- a/src/cc/prices.cpp
+++ b/src/cc/prices.cpp
@@ -659,7 +659,7 @@ int64_t prices_syntheticprofits(int64_t &costbasis, int32_t firstheight, int32_t
 
     profits = costbasis > 0 ? (((price / PRICES_NORMFACTOR * SATOSHIDEN) / costbasis) - SATOSHIDEN / PRICES_NORMFACTOR) * PRICES_NORMFACTOR : 0;
     std::cerr << "prices_syntheticprofits() test value1 (price/PRICES_NORMFACTOR * SATOSHIDEN)=" << (price / PRICES_NORMFACTOR * SATOSHIDEN) << std::endl;
-    std::cerr << "prices_syntheticprofits() test value2 (price/PRICES_NORMFACTOR * SATOSHIDEN)/costbasis=" << (price / PRICES_NORMFACTOR * SATOSHIDEN)/costbasis << std::endl;
+    std::cerr << "prices_syntheticprofits() test value2 (price/PRICES_NORMFACTOR * SATOSHIDEN)/costbasis=" << (costbasis != 0 ? (price / PRICES_NORMFACTOR * SATOSHIDEN)/costbasis : -1) << std::endl;
 
     std::cerr << "prices_syntheticprofits() fract profits=" << profits << std::endl;
     //std::cerr << "prices_syntheticprofits() profits double=" << (double)price / (double)costbasis -1.0 << std::endl;