diff --git a/gnu/packages/python-xyz.scm b/gnu/packages/python-xyz.scm
index 62af6ad2b1..1b4bd7221f 100644
--- a/gnu/packages/python-xyz.scm
+++ b/gnu/packages/python-xyz.scm
@@ -17816,6 +17816,7 @@ (define-public python-pydevd
      (list
       #:test-flags
       #~(list "-n" (number->string (parallel-job-count))
+              "-m" "not flaky"
               "-k"
               (string-append
                ;; The two "break_01" tests have been failing on