diff --git a/tests/org.test.Python.json b/tests/org.test.Python.json
index 64a97cac..b08879bc 100644
--- a/tests/org.test.Python.json
+++ b/tests/org.test.Python.json
@@ -32,7 +32,7 @@
         {
             "name": "modify-python",
             "post-install": [
-	        "cp importme2.py /app/bin/importme.py"
+	        "cp --remove-destination importme2.py /app/bin/importme.py"
             ],
             "sources": [
                 {