diff --git a/packages/CLPBN/clpbn/bp/BpSolver.cpp b/packages/CLPBN/clpbn/bp/BpSolver.cpp
index c5f812f97..6fe7c4851 100644
--- a/packages/CLPBN/clpbn/bp/BpSolver.cpp
+++ b/packages/CLPBN/clpbn/bp/BpSolver.cpp
@@ -278,14 +278,10 @@ BpSolver::calculateFactor2VariableMsg (SpLink* link)
   const SpLinkSet& links = ninf(src)->getLinks();
   // calculate the product of messages that were sent
   // to factor `src', except from var `dst'
-  Params::size_type msgSize = 1;
+  unsigned msgSize = 1;
   for (unsigned i = 0; i < links.size(); i++) {
     msgSize *= links[i]->getVariable()->range();
   }
-  if (msgSize > Util::maxUnsigned()) {
-    cout << "error: an overflow occurred when sending bp message" << endl;
-    abort();
-  }
   unsigned repetitions = 1;
   Params msgProduct (msgSize, LogAware::multIdenty());
   if (Globals::logDomain) {