diff --git a/lib/hx509/hxtool.c b/lib/hx509/hxtool.c
index 181dfbd23..c18685808 100644
--- a/lib/hx509/hxtool.c
+++ b/lib/hx509/hxtool.c
@@ -1592,6 +1592,8 @@ hxtool_ca(struct certificate_sign_options *opt, int argc, char **argv)
 	hx509_certs_free(&certs);
     }
 
+    hx509_cert_free(cert);
+
     return 0;
 }