diff --git a/staging/patchinstall.py b/staging/patchinstall.py
index 8d59b70f..0dd0131e 100755
--- a/staging/patchinstall.py
+++ b/staging/patchinstall.py
@@ -214,7 +214,11 @@ def main():
                 print(f.read().rstrip());
             sys.exit(0)
 
-    for a in args: add_patchset(patchlist, a)
+    for a in args:
+        if a.startswith('DESTDIR='):
+            winedir = a[8:]
+        else:
+            add_patchset(patchlist, a)
 
     for p in excluded: del patchlist[p]