diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 5d53e35763e..fe416542b03 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6001,7 +6001,9 @@ let
 
   nss_ldap = callPackage ../os-specific/linux/nss_ldap { };
 
-  pam = callPackage ../os-specific/linux/pam { };
+  pam = callPackage ../os-specific/linux/pam {
+    libxcrypt = null;
+  };
 
   # pam_bioapi ( see http://www.thinkwiki.org/wiki/How_to_enable_the_fingerprint_reader )