diff --git a/security/py-mnemonic/Makefile b/security/py-mnemonic/Makefile
index da5b10aa943d..72a0947b8bc3 100644
--- a/security/py-mnemonic/Makefile
+++ b/security/py-mnemonic/Makefile
@@ -1,19 +1,21 @@
 # Created by: Emanuel Haupt <ehaupt@FreeBSD.org>
 
 PORTNAME=	mnemonic
 PORTVERSION=	0.19
 CATEGORIES=	security python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	ehaupt@FreeBSD.org
 COMMENT=	Implementation of Bitcoin BIP-0039
 
 LICENSE=	MIT
 
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}pbkdf2>=1.3:security/py-pbkdf2@${PY_FLAVOR}
 
 USES=		python:3.6+
 USE_PYTHON=	autoplist distutils
 
+NO_ARCH=	yes
+
 .include <bsd.port.mk>