diff --git a/lib/libpam/libpam/pam_mod_misc.h b/lib/libpam/libpam/pam_mod_misc.h
index 5e7b01f34fa9..611aa72f2575 100644
--- a/lib/libpam/libpam/pam_mod_misc.h
+++ b/lib/libpam/libpam/pam_mod_misc.h
@@ -35,7 +35,8 @@
  */
 enum opt { PAM_OPT_DEBUG, PAM_OPT_NO_WARN, PAM_OPT_ECHO_PASS,
 	PAM_OPT_USE_FIRST_PASS, PAM_OPT_TRY_FIRST_PASS, PAM_OPT_USE_MAPPED_PASS,
-	PAM_OPT_EXPOSE_ACCOUNT, PAM_OPT_STD_MAX /* XXX */ };
+	PAM_OPT_TRY_MAPPED_PASS, PAM_OPT_EXPOSE_ACCOUNT,
+	PAM_OPT_STD_MAX /* XXX */ };
 
 #define PAM_MAX_OPTIONS	32
 
diff --git a/lib/libpam/libpam/pam_std_option.c b/lib/libpam/libpam/pam_std_option.c
index 95b442eee47e..9c95ab95509a 100644
--- a/lib/libpam/libpam/pam_std_option.c
+++ b/lib/libpam/libpam/pam_std_option.c
@@ -42,6 +42,7 @@ struct opttab std_options[PAM_MAX_OPTIONS] = {
 	{ "use_first_pass",	PAM_OPT_USE_FIRST_PASS },
 	{ "try_first_pass",	PAM_OPT_TRY_FIRST_PASS },
 	{ "use_mapped_pass",	PAM_OPT_USE_MAPPED_PASS },
+	{ "try_mapped_pass",	PAM_OPT_TRY_MAPPED_PASS },
 	{ "expose_account",	PAM_OPT_EXPOSE_ACCOUNT },
 	{ NULL,			0 }
 };
diff --git a/lib/libpam/libpam/security/pam_mod_misc.h b/lib/libpam/libpam/security/pam_mod_misc.h
index 5e7b01f34fa9..611aa72f2575 100644
--- a/lib/libpam/libpam/security/pam_mod_misc.h
+++ b/lib/libpam/libpam/security/pam_mod_misc.h
@@ -35,7 +35,8 @@
  */
 enum opt { PAM_OPT_DEBUG, PAM_OPT_NO_WARN, PAM_OPT_ECHO_PASS,
 	PAM_OPT_USE_FIRST_PASS, PAM_OPT_TRY_FIRST_PASS, PAM_OPT_USE_MAPPED_PASS,
-	PAM_OPT_EXPOSE_ACCOUNT, PAM_OPT_STD_MAX /* XXX */ };
+	PAM_OPT_TRY_MAPPED_PASS, PAM_OPT_EXPOSE_ACCOUNT,
+	PAM_OPT_STD_MAX /* XXX */ };
 
 #define PAM_MAX_OPTIONS	32