diff --git a/secrets/default.nix b/secrets/default.nix
index 1f2fae8..d0c891c 100644
--- a/secrets/default.nix
+++ b/secrets/default.nix
@@ -20,6 +20,7 @@ throwOnCanary {
           int
           str
           (attrsOf valueType)
+          (listOf valueType)
         ];
       in
       valueType;