Index: guix/tests/derivations.scm
===================================================================
--- guix.orig/tests/derivations.scm
+++ guix/tests/derivations.scm
@@ -1195,6 +1195,7 @@
                                          #:mode (build-mode check))
                   (list drv dep))))))
 
+(unless (network-reachable?) (test-skip 1))
 (test-equal "derivation-build-plan, topological ordering"
   (make-list 5 '("0.drv" "1.drv" "2.drv" "3.drv" "4.drv"))
   (with-store store
