diff --git a/test/ikc3/facts.kc3 b/test/ikc3/facts.kc3
index 17b87bc..a2e61c1 100644
--- a/test/ikc3/facts.kc3
+++ b/test/ikc3/facts.kc3
@@ -16,3 +16,5 @@ quote Facts.remove_tags(db, 4, 5, 6)
Facts.remove_tags(db, 4, 5, 6)
quote Facts.with_tags(db, s = ?, p = ?, o = ?, fn (fact) { puts("#{s} #{p} #{o}") ; :ok })
Facts.with_tags(db, s = ?, p = ?, o = ?, fn (fact) { puts("#{s} #{p} #{o}") ; :ok })
+quote Facts.delete(db)
+Facts.delete(db)
diff --git a/test/ikc3/facts.out.expected b/test/ikc3/facts.out.expected
index fc36fdc..547d5e0 100644
--- a/test/ikc3/facts.out.expected
+++ b/test/ikc3/facts.out.expected
@@ -26,3 +26,5 @@ Facts.with_tags(db, s = ?, p = ?, o = ?, fn (fact) { puts("#{s} #{p} #{o}") ; :o
1 2 3
7 8 9
:ok
+Facts.delete(db)
+void