diff --git a/lib/krb5/version-script.map b/lib/krb5/version-script.map
index d06f16b9c..e9a799268 100644
--- a/lib/krb5/version-script.map
+++ b/lib/krb5/version-script.map
@@ -478,6 +478,7 @@ HEIMDAL_KRB5_2.0 {
 		krb5_principal_compare;
 		krb5_principal_compare_any_realm;
 		krb5_principal_get_comp_string;
+		krb5_principal_get_num_comp;
 		krb5_principal_get_realm;
 		krb5_principal_get_type;
 		krb5_principal_match;