diff --git a/selftest.py b/selftest.py
index 324d23b45..3f358c583 100755
--- a/selftest.py
+++ b/selftest.py
@@ -5,15 +5,9 @@ from __future__ import print_function
 import sys
 import os
 
-if "--installed" in sys.argv:
-    sys_path_0 = sys.path.pop(0)
-
 from PIL import Image, ImageDraw, ImageFilter, ImageMath
 from PIL import features
 
-if "--installed" in sys.argv:
-    sys.path.insert(0, sys_path_0)
-
 try:
     Image.core.ping
 except ImportError as v: