diff --git a/Cantera/src/transport/TransportFactory.cpp b/Cantera/src/transport/TransportFactory.cpp
index cf7259528..8b92a9ea9 100755
--- a/Cantera/src/transport/TransportFactory.cpp
+++ b/Cantera/src/transport/TransportFactory.cpp
@@ -108,7 +108,7 @@ namespace Cantera {
 
     doublereal Transport::err(string msg) const { 
         throw NotImplemented(msg);
-        return 0.0;
+        //return 0.0;
     }
 
     //////////////////// class TransportFactory methods //////////////