diff --git a/pkgs/development/interpreters/perl/5.10/default.nix b/pkgs/development/interpreters/perl/5.10/default.nix
index 92e3d00e02d0..6af35e275c84 100644
--- a/pkgs/development/interpreters/perl/5.10/default.nix
+++ b/pkgs/development/interpreters/perl/5.10/default.nix
@@ -57,4 +57,6 @@ stdenv.mkDerivation rec {
     '';
 
   setupHook = ./setup-hook.sh;
+
+  passthru.libPrefix = "lib/perl5/site_perl";
 }
diff --git a/pkgs/development/interpreters/perl/5.14/default.nix b/pkgs/development/interpreters/perl/5.14/default.nix
index 00eaac6b1da8..ac19900bcfc3 100644
--- a/pkgs/development/interpreters/perl/5.14/default.nix
+++ b/pkgs/development/interpreters/perl/5.14/default.nix
@@ -58,4 +58,6 @@ stdenv.mkDerivation rec {
     '';
 
   setupHook = ./setup-hook.sh;
+
+  passthru.libPrefix = "lib/perl5/site_perl";
 }
diff --git a/pkgs/development/interpreters/perl/5.8/default.nix b/pkgs/development/interpreters/perl/5.8/default.nix
index c421e2768cdc..b23b95f72b5a 100644
--- a/pkgs/development/interpreters/perl/5.8/default.nix
+++ b/pkgs/development/interpreters/perl/5.8/default.nix
@@ -62,4 +62,6 @@ genericBuild
   ];
 
   setupHook = ./setup-hook.sh;
+
+  passthru.libPrefix = "lib/perl5/site_perl";
 }
diff --git a/pkgs/development/interpreters/perl/sys-perl/default.nix b/pkgs/development/interpreters/perl/sys-perl/default.nix
index d9bf5a6d60a7..e30ce92c61e4 100644
--- a/pkgs/development/interpreters/perl/sys-perl/default.nix
+++ b/pkgs/development/interpreters/perl/sys-perl/default.nix
@@ -1,6 +1,6 @@
 { stdenv }:
 
-stdenv.mkDerivation {
+stdenv.mkDerivation rec {
   name = "perl";
 
   unpackPhase = "true";
@@ -12,4 +12,8 @@ stdenv.mkDerivation {
     '';
 
   setupHook = ./setup-hook.sh;
+
+  libPrefix = "lib/perl5/site_perl/5.10/i686-cygwin";
+
+  passthru.libPrefix = libPrefix;
 }
diff --git a/pkgs/development/interpreters/perl/sys-perl/setup-hook.sh b/pkgs/development/interpreters/perl/sys-perl/setup-hook.sh
index 1df5cee0f86f..a46a19602e7a 100644
--- a/pkgs/development/interpreters/perl/sys-perl/setup-hook.sh
+++ b/pkgs/development/interpreters/perl/sys-perl/setup-hook.sh
@@ -1,5 +1,5 @@
 addPerlLibPath () {
-    addToSearchPath PERL5LIB $1/lib/perl5/site_perl/5.10/i686-cygwin
+    addToSearchPath PERL5LIB $1/@libPrefix@
 }
 
 envHooks=(${envHooks[@]} addPerlLibPath)