diff --git a/json/schema.cpp b/json/schema.cpp
index 68eb29df..57c19ddc 100644
--- a/json/schema.cpp
+++ b/json/schema.cpp
@@ -224,7 +224,6 @@ is_number_valid (const json::number &node,
             continue;
         }
 
-        const json::node &val = *i.second;
         if (!validator->second (node, schema))
             return false;
     }
@@ -233,14 +232,6 @@ is_number_valid (const json::number &node,
 }
 
 
-bool
-is_number_valid (const json::node   &node,
-                 const json::object &schema) {
-    not_implemented ();
-    return true;
-}
-
-
 //
 // JSON string
 //