diff --git a/guix/scripts/offload.scm b/guix/scripts/offload.scm
index 566d117b0..0dd849942 100644
--- a/guix/scripts/offload.scm
+++ b/guix/scripts/offload.scm
@@ -398,7 +398,7 @@ allowed on MACHINE.  Return +∞ if MACHINE is unreachable."
     ((? session? session)
      (let* ((pipe (open-remote-pipe* session OPEN_READ
                                      "cat" "/proc/loadavg"))
-            (line (read-line pipe)))
+            (line (pk 'line (read-line pipe))))
        (close-port pipe)
 
        (if (eof-object? line)