diff --git a/pam/config-redhat-linux b/pam/config-redhat-linux
index 2c53132da..614c2e3c2 100644
--- a/pam/config-redhat-linux
+++ b/pam/config-redhat-linux
@@ -1,4 +1,4 @@
-lib_dirs=/lib/security
+lib_dirs=/lib/security /lib64/security
 ignore=README .*\.rpmsave
 pam_dir=/etc/pam.d
 mod_equiv=pam_unix_acct.so=pam_pwdb.so pam_unix_auth.so=pam_pwdb.so pam_unix_passwd.so=pam_pwdb.so pam_unix_session.so=pam_pwdb.so pam_unix_sess.so=pam_pwdb.so pam_unix.so=pam_pwdb.so