diff --git a/pkgs/servers/sql/postgresql/9.2.x.nix b/pkgs/servers/sql/postgresql/9.2.x.nix
index e04309fc466..5c51a7c578a 100644
--- a/pkgs/servers/sql/postgresql/9.2.x.nix
+++ b/pkgs/servers/sql/postgresql/9.2.x.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
 
   makeFlags = [ "world" ];
 
-  configureFlags = [ "--with-openssl" ];
+  configureFlags = stdenv.lib.optionals (!stdenv.isCygwin) [ "--with-openssl" ];
 
   patches = [ ./disable-resolve_symlinks.patch ./less-is-more.patch ];