--- a/beagle/include/beagle/RouletteT.hpp
+++ b/beagle/include/beagle/RouletteT.hpp
@@ -87,7 +87,7 @@
     Beagle_StackTraceBeginM();
     Beagle_AssertM(inWeight>=0.0);
     if(VectorType::empty()==false) inWeight += VectorType::back().first;
-    push_back(std::make_pair(inWeight,inValue));
+    this->push_back(std::make_pair(inWeight,inValue));
     Beagle_StackTraceEndM("void RouletteT<T>::insert(const T& inValue, double inWeight)");
   }