diff --git a/component/libpng/buildout.cfg b/component/libpng/buildout.cfg
index 17517b2fc996ea82fee92d9b223e5f63a9771c7c..d5ef73cf8a8c485d71f7f1bb2ca4ba57a3c9be8f 100644
--- a/component/libpng/buildout.cfg
+++ b/component/libpng/buildout.cfg
@@ -34,10 +34,10 @@ so_version = 16
 
 [libpng:cygwin]
 url = ftp://lug.mtu.edu/cygwin/release/libpng/libpng-1.5.12-1-src.tar.bz2
-md5sum = 032c14e3b305779014232c2dd1415321
+md5sum = 90d3fc56e57622511df3169ff57a3eb3
 configure-command = cygport
 configure-options =
-  libpng.cygport
+  libpng-1.5.12-1.cygport
   prep
   compile
 make-options = -C libpng-1.5.12-1/build