diff -r 7cccf8704b78 -r c1695143de35 Admin/PLATFORMS
--- a/Admin/PLATFORMS	Sat Oct 22 13:11:37 2016 +0200
+++ b/Admin/PLATFORMS	Sat Oct 22 13:41:18 2016 +0200
@@ -41,7 +41,7 @@
 
   x86-windows       Windows 7
   x86_64-windows    Windows 7
-  x86-cygwin        http://isabelle.in.tum.de/cygwin_2016 (x86/release)
+  x86-cygwin        http://isabelle.in.tum.de/cygwin_2016-1 (x86/release)
 
 All of the above platforms are 100% supported by Isabelle -- end-users
 should not have to care about the differences (at least in theory).