diff --git a/src/komodo_gateway.h b/src/komodo_gateway.h
index 64b11bafe..25dc6d0bd 100644
--- a/src/komodo_gateway.h
+++ b/src/komodo_gateway.h
@@ -1711,6 +1711,9 @@ int32_t komodo_opretvalidate(int32_t nHeight,CScript scriptPubKey)
                 fprintf(stderr,"ht.%d: t%u lag.%d %.4f USD, %.4f GBP, %.4f EUR htstamp.%d [%d]\n",nHeight,pricebits[0],lag,(double)pricebits[1]/10000,(double)pricebits[2]/10000,(double)pricebits[3]/10000,komodo_heightstamp(nHeight-1),lag2);
                 if ( komodo_heightpricebits(prevbits,nHeight-1) == 0 )
                 {
+                    for (i=1; i<n; i++)
+                        fprintf(stderr,"%.4f ",(double)prevbits[i]/10000);
+                    fprintf(stderr," oldprices.%d\n",nHeight);
                     for (i=1; i<n; i++)
                         fprintf(stderr,"%.4f ",(double)pricebits[i]/10000);
                     fprintf(stderr," newprices.%d\n",nHeight);