1 files changed, 2 insertions, 1 deletions

diff --git a/tests/packages.scm b/tests/packages.scm
index e5704ae4b9b..4e4bffc48c7 100644
--- a/tests/packages.scm
+++ b/tests/packages.scm
@@ -1037,7 +1037,8 @@
                                                       result))
                                               '()))))))
 
-    (lset= equal? no-cache from-cache)))
+    (and (equal? (delete-duplicates from-cache) from-cache)
+         (lset= equal? no-cache from-cache))))
 
 (test-assert "find-packages-by-name"
   (match (find-packages-by-name "hello")