diff --git a/include/mapnik/feature_kv_iterator.hpp b/include/mapnik/feature_kv_iterator.hpp
index 8cf76fe33..7c2f2a495 100644
--- a/include/mapnik/feature_kv_iterator.hpp
+++ b/include/mapnik/feature_kv_iterator.hpp
@@ -24,6 +24,7 @@
 #define MAPNIK_FEATURE_KV_ITERATOR_HPP
 
 // mapnik
+#include <mapnik/config.hpp>
 #include <mapnik/value.hpp>
 // boost
 #include <boost/tuple/tuple.hpp>
@@ -39,7 +40,7 @@ namespace mapnik {
 
 class feature_impl;
 
-class feature_kv_iterator :
+class MAPNIK_DECL feature_kv_iterator :
         public boost::iterator_facade<feature_kv_iterator,
                                       boost::tuple<std::string , value> const,
                                       boost::forward_traversal_tag>
diff --git a/src/feature_kv_iterator.cpp b/src/feature_kv_iterator.cpp
index 09551db60..9cf9402f3 100644
--- a/src/feature_kv_iterator.cpp
+++ b/src/feature_kv_iterator.cpp
@@ -42,7 +42,7 @@ void feature_kv_iterator::decrement()
     // dummy //--itr_;
 }
 
-void advance(boost::iterator_difference<feature_kv_iterator>::type )
+void feature_kv_iterator::advance(boost::iterator_difference<feature_kv_iterator>::type )
 {
     // dummy
 }