diff --git a/uri.hpp b/uri.hpp
index c88c7ccf..1c7741cd 100644
--- a/uri.hpp
+++ b/uri.hpp
@@ -104,7 +104,12 @@ namespace cruft {
         pqf (void) const& {
             return {
                 m_views[PATH].begin (),
-                m_views[FRAGMENT].end ()
+                std::size_t (
+                    std::distance (
+                        m_views[PATH].begin (),
+                        m_views[FRAGMENT].end ()
+                    )
+                )
             };
         }