diff --git a/install.py b/install.py
index 12dff6b..b6f200a 100755
--- a/install.py
+++ b/install.py
@@ -252,7 +252,7 @@ class Installer:
         p_dest = Path(dest).expanduser()
         pretty_dest = self.pretty_path(p_dest)
 
-        if p_dest.exists() and not self.force:
+        if p_dest.exists() and not self.force and not append:
             ui.info_2("Skipping", pretty_dest)
             return