diff --git a/lib/gssapi/gssapi_locl.h b/lib/gssapi/gssapi_locl.h
index 5fc6a60ef..64a650c33 100644
--- a/lib/gssapi/gssapi_locl.h
+++ b/lib/gssapi/gssapi_locl.h
@@ -72,6 +72,8 @@ typedef struct gss_ctx_id_t_desc_struct {
 
 typedef struct gss_cred_id_t_desc_struct {
   gss_name_t principal;
+  int cred_flags;
+#define GSS_CF_DESTROY_CRED_ON_RELEASE	1
   struct krb5_keytab_data *keytab;
   OM_uint32 lifetime;
   gss_cred_usage_t usage;
diff --git a/lib/gssapi/krb5/gssapi_locl.h b/lib/gssapi/krb5/gssapi_locl.h
index 5fc6a60ef..64a650c33 100644
--- a/lib/gssapi/krb5/gssapi_locl.h
+++ b/lib/gssapi/krb5/gssapi_locl.h
@@ -72,6 +72,8 @@ typedef struct gss_ctx_id_t_desc_struct {
 
 typedef struct gss_cred_id_t_desc_struct {
   gss_name_t principal;
+  int cred_flags;
+#define GSS_CF_DESTROY_CRED_ON_RELEASE	1
   struct krb5_keytab_data *keytab;
   OM_uint32 lifetime;
   gss_cred_usage_t usage;