diff --git a/guix/narinfo.scm b/guix/narinfo.scm
index 241090ec982..d3deba28bd7 100644
--- a/guix/narinfo.scm
+++ b/guix/narinfo.scm
@@ -50,6 +50,7 @@
             narinfo-deriver
             narinfo-system
             narinfo-signature
+            narinfo-contents
 
             narinfo-hash-algorithm+value