diff --git a/Misc/NEWS.d/next/Tests/2021-10-07-13-43-01.bpo-45402.jlQvep.rst b/Misc/NEWS.d/next/Tests/2021-10-07-13-43-01.bpo-45402.jlQvep.rst
new file mode 100644
index 00000000000..d8c65530658
--- /dev/null
+++ b/Misc/NEWS.d/next/Tests/2021-10-07-13-43-01.bpo-45402.jlQvep.rst
@@ -0,0 +1,3 @@
+Fix test_tools.test_sundry() when Python is built out of tree: fix how
+the freeze_modules.py tool locates the _freeze_module program.
+Patch by Victor Stinner.
diff --git a/Tools/scripts/freeze_modules.py b/Tools/scripts/freeze_modules.py
index 36e284100ed..5c7eee42952 100644
--- a/Tools/scripts/freeze_modules.py
+++ b/Tools/scripts/freeze_modules.py
@@ -29,9 +29,10 @@
 if sys.platform != "win32":
     TOOL = os.path.join(ROOT_DIR, 'Programs', '_freeze_module')
     if not os.path.isfile(TOOL):
-        # When building out of the source tree, get the tool from the current
-        # directory
-        TOOL = os.path.join('Programs', '_freeze_module')
+        # When building out of the source tree, get the tool from directory
+        # of the Python executable
+        TOOL = os.path.dirname(sys.executable)
+        TOOL = os.path.join(TOOL, 'Programs', '_freeze_module')
         TOOL = os.path.abspath(TOOL)
         if not os.path.isfile(TOOL):
             sys.exit("ERROR: missing _freeze_module")