diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index e0ed063d397..2990b590f44 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -2370,12 +2370,14 @@ let
       impureLibcPath = if stdenv.isLinux then null else "/usr";
     };
 
-  perl = import ../development/interpreters/perl-5.10 {
+  perl510 = import ../development/interpreters/perl-5.10 {
     inherit stdenv;
     fetchurl = fetchurlBoot;
     impureLibcPath = if stdenv.isLinux then null else "/usr";
   };
 
+  perl = if system != "i686-cygwin" then perl510 else sysPerl;
+
   # FIXME: unixODBC needs patching on Darwin (see darwinports)
   phpOld = import ../development/interpreters/php {
     inherit stdenv fetchurl flex bison libxml2 apacheHttpd;