1 files changed, 7 insertions, 0 deletions
diff --git a/toolsrc/include/vcpkg/packagespec.h b/toolsrc/include/vcpkg/packagespec.h
index 071487e1a..f1119e2f3 100644
--- a/toolsrc/include/vcpkg/packagespec.h
+++ b/toolsrc/include/vcpkg/packagespec.h
@@ -34,6 +34,13 @@ namespace vcpkg
 
         std::string to_string() const;
 
+        bool operator<(const PackageSpec& other) const
+        {
+            if (name() < other.name()) return true;
+            if (name() > other.name()) return false;
+            return triplet() < other.triplet();
+        }
+
     private:
         std::string m_name;
         Triplet m_triplet;