diff --git a/Eigen/src/Core/MapBase.h b/Eigen/src/Core/MapBase.h
index e018b30bb..a259e3aee 100644
--- a/Eigen/src/Core/MapBase.h
+++ b/Eigen/src/Core/MapBase.h
@@ -85,6 +85,8 @@ template<typename Derived> class MapBase<Derived, ReadOnlyAccessors>
     using Base::rowStride;
     using Base::colStride;
 
+    // bug 217 - compile error on ICC 11.1
+    using Base::operator=;
 
     typedef typename Base::CoeffReturnType CoeffReturnType;