diff --git a/src/libstore/build-result.hh b/src/libstore/build-result.hh
index cb6d19b8e..7f9bcce6d 100644
--- a/src/libstore/build-result.hh
+++ b/src/libstore/build-result.hh
@@ -1,6 +1,7 @@
 #pragma once
 
 #include "realisation.hh"
+#include "derived-path.hh"
 
 #include <string>
 #include <chrono>