diff --git a/brian2/tests/test_cpp_standalone.py b/brian2/tests/test_cpp_standalone.py
index e592227a6..312124408 100644
--- a/brian2/tests/test_cpp_standalone.py
+++ b/brian2/tests/test_cpp_standalone.py
@@ -401,6 +401,7 @@ def test_change_parameters_multiprocessing():
 
     import multiprocessing
 
+    multiprocessing.set_start_method("spawn")
     with multiprocessing.Pool() as p:
         results = p.map(sim.run_sim, range(5))