diff --git a/uri.hpp b/uri.hpp
index 4aaebe08..ed0a0035 100644
--- a/uri.hpp
+++ b/uri.hpp
@@ -97,6 +97,9 @@ namespace cruft {
         std::string m_value;
     };
 
+    cruft::uri resolve (cruft::uri base, cruft::uri child);
+    cruft::uri normalise (cruft::uri);
+
     std::ostream& operator<< (std::ostream&, uri const&);
     std::ostream& operator<< (std::ostream&, uri::component);
 }