diff --git a/include/boost/container/container_fwd.hpp b/include/boost/container/container_fwd.hpp
index b7591cd..0cbc991 100644
--- a/include/boost/container/container_fwd.hpp
+++ b/include/boost/container/container_fwd.hpp
@@ -24,6 +24,7 @@
 //!   - boost::container::vector
 //!   - boost::container::stable_vector
 //!   - boost::container::static_vector
+//!   - boost::container::small_vector_base
 //!   - boost::container::small_vector
 //!   - boost::container::slist
 //!   - boost::container::list
@@ -108,6 +109,9 @@ class stable_vector;
 template <class T, std::size_t Capacity>
 class static_vector;
 
+template <class T, class Allocator = void >
+class small_vector_base;
+
 template < class T, std::size_t N
          , class Allocator = void >
 class small_vector;
diff --git a/include/boost/container/small_vector.hpp b/include/boost/container/small_vector.hpp
index 83f1cad..ac24903 100644
--- a/include/boost/container/small_vector.hpp
+++ b/include/boost/container/small_vector.hpp
@@ -48,13 +48,6 @@
 namespace boost {
 namespace container {
 
-#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
-
-template <class T, class Allocator = void >
-class small_vector_base;
-
-#endif
-
 //! A non-standard allocator used to implement `small_vector`.
 //! Users should never use it directly. It is described here
 //! for documentation purposes.