diff --git a/guix/scripts/environment.scm b/guix/scripts/environment.scm
index a08367d1b1..8a3a935a10 100644
--- a/guix/scripts/environment.scm
+++ b/guix/scripts/environment.scm
@@ -421,7 +421,8 @@ (define* (launch-environment/container #:key command bash user-mappings
                                              ;; read-only within the
                                              ;; container.
                                              (writable?
-                                              (string=? "/etc/resolv.conf")))))
+                                              (string=? file
+                                                        "/etc/resolv.conf")))))
                                      %network-configuration-files)
                          '())
                      ;; Mappings for the union closure of all inputs.