diff --git a/Eigen/src/Core/MapBase.h b/Eigen/src/Core/MapBase.h
index 5bdf59fbc..0151cc67f 100644
--- a/Eigen/src/Core/MapBase.h
+++ b/Eigen/src/Core/MapBase.h
@@ -177,7 +177,7 @@ template<typename Derived> class MapBase
     // FIXME it seems VS does not allow to do "using Base::operator+="
     // and to overload operator+= at the same time, therefore we have to
     // explicitly add these two overloads.
-    // Maye their exists a better solution though.
+    // Maybe there exists a better solution though.
     template<typename ProductDerived, typename Lhs,typename Rhs>
     Derived& operator+=(const Flagged<ProductBase<ProductDerived,Lhs,Rhs>, 0, EvalBeforeNestingBit | EvalBeforeAssigningBit>& other)
     { return Base::operator+=(other); }