diff --git a/tests/db/krb5.conf.in b/tests/db/krb5.conf.in
index e87093918..d78102304 100644
--- a/tests/db/krb5.conf.in
+++ b/tests/db/krb5.conf.in
@@ -1,3 +1,5 @@
+[libdefaults]
+	default_realm = EXAMPLE.ORG
 
 [realms]
 	EXAMPLE.ORG = {