1 files changed, 4 insertions, 2 deletions
diff --git a/tests/test_process.py b/tests/test_process.py
index 4409c69e..c49d90a9 100644
--- a/tests/test_process.py
+++ b/tests/test_process.py
@@ -598,10 +598,12 @@ class ProcessStartupTest(CoverageTest):
             raise SkipTest(
                 "Can't test subprocess pth file suppport during metacoverage"
                 )
+
         # Main will run sub.py
         self.make_file("main.py", """\
-            import os
-            os.system("python sub.py")
+            import os, os.path, sys
+            ex = os.path.basename(sys.executable)
+            os.system(ex + " sub.py")
             """)
         # sub.py will write a few lines.
         self.make_file("sub.py", """\