diff --git a/Eigen/src/Core/Ref.h b/Eigen/src/Core/Ref.h
index 9c409eecf..51890a7a5 100644
--- a/Eigen/src/Core/Ref.h
+++ b/Eigen/src/Core/Ref.h
@@ -149,6 +149,8 @@ public:
       m_stride(StrideType::OuterStrideAtCompileTime==Dynamic?0:StrideType::OuterStrideAtCompileTime,
                StrideType::InnerStrideAtCompileTime==Dynamic?0:StrideType::InnerStrideAtCompileTime)
   {}
+  
+  EIGEN_INHERIT_ASSIGNMENT_OPERATORS(RefBase)
 
 protected: