diff --git a/tests/run-tests.py b/tests/run-tests.py
--- a/tests/run-tests.py
+++ b/tests/run-tests.py
@@ -402,7 +402,7 @@ def run_one(test, skips):
 
     os.chdir(TESTDIR)
     if not options.keep_tmpdir:
-	    shutil.rmtree(tmpd, True)
+        shutil.rmtree(tmpd, True)
     if skipped:
         return None
     return ret == 0