diff --git a/README.md b/README.md
index 79a3e96..ba0125e 100644
--- a/README.md
+++ b/README.md
@@ -22,4 +22,4 @@ It will then download and extract all the (latest version) of each  core to: `~/
 - Choose which architecture you are downloading format
 - Choose what platform you are downloading format
 - Download progress bar
-- Keep downloaded archives
+- ~~Keep downloaded archives~~
diff --git a/RetroUFO.py b/RetroUFO.py
index 492fc04..139f612 100644
--- a/RetroUFO.py
+++ b/RetroUFO.py
@@ -24,8 +24,8 @@ def main(args):
     """ Where the magic happens """
     download_cores()
     extract_cores()
-    clean_up()
-    pass
+    if not args.keep:
+        clean_up()
 
 
 def download_cores():
@@ -82,6 +82,9 @@ if __name__ == "__main__":
     """ This is executed when run from the command line """
     parser = argparse.ArgumentParser()
 
+    parser.add_argument('-k', '--keep', action='store_true',
+                    help='Keeps downloaded core archives')
+
     args = parser.parse_args()
     main(args)
     pass