diff --git a/multimedia/aegisub/Makefile b/multimedia/aegisub/Makefile
index d5eb671cb42b..b62ad60749c1 100644
--- a/multimedia/aegisub/Makefile
+++ b/multimedia/aegisub/Makefile
@@ -15,6 +15,9 @@ COMMENT=	Cross-platform subtitle editor
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENCE
 
+NOT_FOR_ARCHS=		powerpc64
+NOT_FOR_ARCHS_REASON_powerpc64=		No support for PowerPC 64 bit mode
+
 LIB_DEPENDS=	libboost_thread.so:devel/boost-libs \
 		libicui18n.so:devel/icu \
 		libass.so:multimedia/libass \