diff --git a/compiler/tests/testutils.py b/compiler/tests/testutils.py
index a22416e2..6310673e 100755
--- a/compiler/tests/testutils.py
+++ b/compiler/tests/testutils.py
@@ -38,7 +38,8 @@ class openram_test(unittest.TestCase):
             if result != 0:
                 new_file = "/tmp/"+a.name+".gds"
                 debug.info(0,"Copying failed file to {}".format(new_file))
-                os.copy(tempgds, newfile)
+                import shutil                
+                shutil.copy(tempgds, newfile)
                 self.fail("DRC failed: {}".format(a.name))