diff --git a/test/lisp/net/tramp-tests.el b/test/lisp/net/tramp-tests.el
index 92ad41b19ad..129ffe9eee7 100644
--- a/test/lisp/net/tramp-tests.el
+++ b/test/lisp/net/tramp-tests.el
@@ -5229,6 +5229,7 @@ process sentinels.  They shall not disturb each other."
   ;; infrequently hangs for hours until killed by the infrastructure.
   (with-timeout (300 (tramp--test-timeout-handler))
     (define-key special-event-map [sigusr1] 'tramp--test-timeout-handler)
+    (tramp--test-instrument-test-case (if (getenv "EMACS_HYDRA_CI") 10 0)
     (let* (;; For the watchdog.
 	   (default-directory (expand-file-name temporary-file-directory))
 	   (watchdog