diff --git a/lib/krb5/constants.c b/lib/krb5/constants.c
index 03bd59b0b..2b568d351 100644
--- a/lib/krb5/constants.c
+++ b/lib/krb5/constants.c
@@ -42,3 +42,9 @@ KRB5_LIB_VARIABLE const char *krb5_config_file =
 #endif
 SYSCONFDIR "/krb5.conf:/etc/krb5.conf";
 KRB5_LIB_VARIABLE const char *krb5_defkeyname = KEYTAB_DEFAULT;
+
+KRB5_LIB_VARIABLE const char *krb5_cc_type_api = "API";
+KRB5_LIB_VARIABLE const char *krb5_cc_type_file = "FILE";
+KRB5_LIB_VARIABLE const char *krb5_cc_type_memory = "MEMORY";
+KRB5_LIB_VARIABLE const char *krb5_cc_type_kcm = "KCM";
+KRB5_LIB_VARIABLE const char *krb5_cc_type_scache = "SCACHE";