diff --git a/doc/xsso_errata.txt b/doc/xsso_errata.txt
index 9e7465d..109a6e2 100644
--- a/doc/xsso_errata.txt
+++ b/doc/xsso_errata.txt
@@ -5,6 +5,9 @@ Errata in XSSO, chapter 5:
 p. 25:	the first member of struct pam_response is named "resp", not
 	"response".
 
+p. 28:	the first pam_sm_chauthtok() flag is PAM_PRELIM_CHECK, not
+	PAM_CRED_PRELIM_CHECK.
+
 Errata in XSSO, chapter 6:
 
 p. 32:	"PAM_NEW_AUTHTOKEN_REQD" in the DESCRIPTION and RETURN VALUE
diff --git a/include/security/pam_constants.h b/include/security/pam_constants.h
index 21b70fb..4aacf71 100644
--- a/include/security/pam_constants.h
+++ b/include/security/pam_constants.h
@@ -96,7 +96,7 @@ enum {
 	PAM_DELETE_CRED			= 0x2,
 	PAM_REINITIALISE_CRED		= 0x4,
 	PAM_REFRESH_CRED		= 0x8,
-	PAM_CRED_PRELIM_CHECK		= 0x1,
+	PAM_PRELIM_CHECK		= 0x1,
 	PAM_UPDATE_AUTHTOK		= 0x2,
 	PAM_CHANGE_EXPIRED_AUTHTOK	= 0x4
 };