diff --git a/os.path/test_path.py b/os.path/test_path.py
index 496e151f..d2d3a3be 100644
--- a/os.path/test_path.py
+++ b/os.path/test_path.py
@@ -1,5 +1,10 @@
 import sys
-sys.path[0] = "os"
+
+dir = "."
+if "/" in __file__:
+    dir = __file__.rsplit("/", 1)[0]
+
+sys.path[0] = dir + "/os"
 from path import *
 
 assert split("") == ("", "")
@@ -9,9 +14,9 @@ assert split("/foo") == ("/", "foo")
 assert split("/foo/") == ("/foo", "")
 assert split("/foo/bar") == ("/foo", "bar")
 
-assert exists("test_path.py")
-assert not exists("test_path.py--")
+assert exists(dir + "/test_path.py")
+assert not exists(dir + "/test_path.py--")
 
-assert isdir("os")
-assert not isdir("os--")
-assert not isdir("test_path.py")
+assert isdir(dir + "/os")
+assert not isdir(dir + "/os--")
+assert not isdir(dir + "/test_path.py")