diff --git a/gnu/tests/dict.scm b/gnu/tests/dict.scm
index 4d9702360c..f02bd5ac99 100644
--- a/gnu/tests/dict.scm
+++ b/gnu/tests/dict.scm
@@ -63,7 +63,8 @@ (define os
   (define vm
     (virtual-machine
      (operating-system os)
-     (port-forwardings '((8000 . 2628)))))
+     (port-forwardings '((8000 . 2628)))
+     (memory-size 1024)))
 
   (define test
     (with-imported-modules '((gnu build marionette))