diff --git a/news/2 Fixes/6417.md b/news/2 Fixes/6417.md
new file mode 100644
index 000000000000..c0bbed103301
--- /dev/null
+++ b/news/2 Fixes/6417.md	
@@ -0,0 +1 @@
+Fix overwriting of cwd in the path list when discovering tests.
diff --git a/pythonFiles/testing_tools/run_adapter.py b/pythonFiles/testing_tools/run_adapter.py
index d21f3efd1b70..04a8cdae4c9b 100644
--- a/pythonFiles/testing_tools/run_adapter.py
+++ b/pythonFiles/testing_tools/run_adapter.py
@@ -4,9 +4,11 @@
 # Replace the "." entry.
 import os.path
 import sys
-sys.path[0] = os.path.dirname(
-    os.path.dirname(
-        os.path.abspath(__file__)))
+
+sys.path.insert(1,
+                os.path.dirname(
+                    os.path.dirname(
+                        os.path.abspath(__file__))))
 
 from testing_tools.adapter.__main__ import parse_args, main