diff --git a/pbresize b/pbresize
index 3491d16..14a5a81 100755
--- a/pbresize
+++ b/pbresize
@@ -2,5 +2,5 @@
 
 pngpaste /tmp/ss.png
 width=$((`sips -g pixelWidth /tmp/ss.png | cut -s -d ':' -f 2 | cut -c 2-` / 2))
-sips -Z $width /tmp/ss.png
+sips --resampleWidth $width /tmp/ss.png
 impbcopy /tmp/ss.png