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-rw-r--r--gnu/tests/base.scm4
1 files changed, 3 insertions, 1 deletions
diff --git a/gnu/tests/base.scm b/gnu/tests/base.scm
index d578f1977a..cf942fe5e1 100644
--- a/gnu/tests/base.scm
+++ b/gnu/tests/base.scm
@@ -311,7 +311,9 @@ info --version")
             "\"root\""
             (begin
               ;; Assume we logged in in the previous test and type.
-              (marionette-type "guile -c '(write (getlogin))' > /root/login-id\n"
+              (marionette-type "guile -c '(write (getlogin))' > /root/login-id.tmp\n"
+                               marionette)
+              (marionette-type "mv /root/login-id{.tmp,}\n"
                                marionette)
 
               ;; It can take a while before the shell commands are executed.