diff --git a/json/schema.cpp b/json/schema.cpp
index b8daa621..061640f6 100644
--- a/json/schema.cpp
+++ b/json/schema.cpp
@@ -18,7 +18,9 @@
 
 #include "./tree.hpp"
 #include "./except.hpp"
+
 #include "../debug.hpp"
+#include "../io.hpp"
 #include "../maths.hpp"
 
 #include <regex>
@@ -443,3 +445,14 @@ json::schema::validate (json::tree::node &data,
 
     return ::validate (data, schema.as_object ());
 }
+
+
+//-----------------------------------------------------------------------------
+void
+json::schema::validate (json::tree::node &data,
+                        const boost::filesystem::path &schema_path)
+{
+    const util::mapped_file schema_data (schema_path.string ().c_str ());
+    auto schema_object = json::tree::parse (schema_data.as_view<char> ());
+    validate (data, schema_object->as_object ());
+}
diff --git a/json/schema.hpp b/json/schema.hpp
index bc263322..a1f5af6d 100644
--- a/json/schema.hpp
+++ b/json/schema.hpp
@@ -20,11 +20,16 @@
 #include "./fwd.hpp"
 
 #include <memory>
+#include <boost/filesystem/path.hpp>
 
 namespace json { namespace schema {
-    void
-    validate (json::tree::node &data,
-              const json::tree::object &schema);
+    // Validate the json tree using the provide schema object or path.
+    //
+    // Note that the data object being validated may be altered in the process
+    // of validation. If a value is not present but the schema specifies a
+    // default, it will be realised in the data object.
+    void validate (json::tree::node &data, const json::tree::object &schema);
+    void validate (json::tree::node &data, const boost::filesystem::path &schema);
 } }
 
 #endif