diff --git a/Eigen/src/Core/util/Memory.h b/Eigen/src/Core/util/Memory.h
index 51ec78f1a..e911b3e06 100644
--- a/Eigen/src/Core/util/Memory.h
+++ b/Eigen/src/Core/util/Memory.h
@@ -509,11 +509,13 @@ inline static Index first_aligned(const Scalar* array, Index size)
 * Example:
 * \code
 * // Matrix4f requires 16 bytes alignment:
-* std::map< int, Matrix4f, std::less<int>, aligned_allocator<Matrix4f> > my_map_mat4;
+* std::map< int, Matrix4f, std::less<int>, 
+*           aligned_allocator<std::pair<const int, Matrix4f> > > my_map_mat4;
 * // Vector3f does not require 16 bytes alignment, no need to use Eigen's allocator:
 * std::map< int, Vector3f > my_map_vec3;
 * \endcode
 *
+* \sa \ref TopicStlContainers.
 */
 template<class T>
 class aligned_allocator
diff --git a/doc/D01_StlContainers.dox b/doc/D01_StlContainers.dox
index 92c67c0ba..b5dbf0698 100644
--- a/doc/D01_StlContainers.dox
+++ b/doc/D01_StlContainers.dox
@@ -27,9 +27,9 @@ std::map<int, Eigen::Vector4f>
 you need to use
 \code
 std::map<int, Eigen::Vector4f, std::less<int>, 
-         std::pair<const int, Eigen::aligned_allocator<Eigen::Vector4f> > >
+         Eigen::aligned_allocator<std::pair<const int, Eigen::Vector4f> > >
 \endcode
-Note that here, the 3rd parameter "std::less<int>" is just the default value, we only had to specify it because we needed to specify the allocator type, that is the 4th parameter.
+Note that the third parameter "std::less<int>" is just the default value, but we have to include it because we want to specify the fourth parameter, which is the allocator type.
 
 \section vector The case of std::vector