diff --git libpkg/pkg_audit.c libpkg/pkg_audit.c
index f9e4a60f..ac02b252 100644
--- libpkg/pkg_audit.c
+++ libpkg/pkg_audit.c
@@ -634,6 +634,9 @@ pkg_audit_preprocess(struct pkg_audit_entry *h)
 	struct pkg_audit_item *ret;
 	size_t i, n, tofill;
 
+	if (h == NULL)
+		return NULL;
+
 	n = 0;
 	LL_FOREACH(h, e)
 		n++;