diff --git a/Sanity/caching-forwarder-dnssec/test.sh b/Sanity/caching-forwarder-dnssec/test.sh
index 47f4b58..8b8972b 100755
--- a/Sanity/caching-forwarder-dnssec/test.sh
+++ b/Sanity/caching-forwarder-dnssec/test.sh
@@ -186,6 +186,8 @@ rlJournalStart
 	buDigSuccessSecure @localhost
 
 	KEYID=$(buDigKskId @localhost .)
+	rlAssertNotEquals "Check keyId is not empty." "$KEYID" ""
+	rlAssertGreater "Check keyId is non-zero" "$KEYID" 0
 	rlRun "rndc secroots"
 	rlRun "grep \"^./RSASHA256/$KEYID\" /var/named/data/named.secroots" 0 "Check trust anchor is trusted"
     rlPhaseEnd