diff --git a/include/boost/algorithm/string/detail/find_format.hpp b/include/boost/algorithm/string/detail/find_format.hpp
index ca0dfd1..ccac0d4 100644
--- a/include/boost/algorithm/string/detail/find_format.hpp
+++ b/include/boost/algorithm/string/detail/find_format.hpp
@@ -174,7 +174,7 @@ namespace boost {
                 typename FormatResultT >
             inline void find_format_impl2( 
                 InputT& Input,
-                FinderT Finder,
+                FinderT,
                 FormatterT Formatter,
                 const FindResultT& FindResult,
                 const FormatResultT& FormatResult)
diff --git a/include/boost/algorithm/string/formatter.hpp b/include/boost/algorithm/string/formatter.hpp
index b15bcf8..daf8752 100644
--- a/include/boost/algorithm/string/formatter.hpp
+++ b/include/boost/algorithm/string/formatter.hpp
@@ -72,7 +72,7 @@ namespace boost {
         template<typename CollectionT>
         inline detail::empty_formatF< 
             BOOST_STRING_TYPENAME value_type_of<CollectionT>::type>
-        empty_formatter(const CollectionT& Input)
+        empty_formatter(const CollectionT&)
         {
             return detail::empty_formatF<
                 BOOST_STRING_TYPENAME value_type_of<CollectionT>::type>();