diff --git a/testing/test_assertion.py b/testing/test_assertion.py
index 3ce0f93e6..e6e42b6dd 100644
--- a/testing/test_assertion.py
+++ b/testing/test_assertion.py
@@ -1264,6 +1264,7 @@ def test_exception_handling_no_traceback(testdir):
             multitask_job()
     """
     )
+    testdir.syspathinsert()
     result = testdir.runpytest(p1, "--tb=long")
     result.stdout.fnmatch_lines(
         [
diff --git a/testing/test_reports.py b/testing/test_reports.py
index 8c509ec47..13f593215 100644
--- a/testing/test_reports.py
+++ b/testing/test_reports.py
@@ -362,6 +362,7 @@ class TestReportSerialization:
             """
             )
 
+        testdir.syspathinsert()
         reprec = testdir.inline_run()
 
         reports = reprec.getreports("pytest_runtest_logreport")