diff --git a/src/arith_uint256.cpp b/src/arith_uint256.cpp
index a1865b649..c9074fe91 100644
--- a/src/arith_uint256.cpp
+++ b/src/arith_uint256.cpp
@@ -111,7 +111,7 @@ int base_uint<BITS>::CompareTo(const base_uint<BITS>& b) const
 {
     if ( (uint64_t)pn < 0x1000 || (uint64_t)b.pn <= 0x1000 )
     {
-        fprintf(stderr,"CompareTo null %p or %p\n",pn,b.pn);
+        //fprintf(stderr,"CompareTo null %p or %p\n",pn,b.pn);
         return(0);
     }
     for (int i = WIDTH - 1; i >= 0; i--) {