diff --git a/codejail/tests/test_safe_exec.py b/codejail/tests/test_safe_exec.py
index c876213d..d30d963e 100644
--- a/codejail/tests/test_safe_exec.py
+++ b/codejail/tests/test_safe_exec.py
@@ -99,6 +99,7 @@ def test_printing_stuff_when_you_shouldnt(self):
 
     def test_importing_lots_of_crap(self):
         set_limit('REALTIME', 10)
+        set_limit('NPROC', 30)
         globs = {}
         self.safe_exec(textwrap.dedent("""\
             from numpy import *