diff --git a/x11-toolkits/tk84/Makefile b/x11-toolkits/tk84/Makefile
index 83cd6396f46a..c7484f554a2b 100644
--- a/x11-toolkits/tk84/Makefile
+++ b/x11-toolkits/tk84/Makefile
@@ -14,6 +14,7 @@ DISTNAME=	${PORTNAME}${PORTVERSION}-src
 
 MAINTAINER=	dinoex@FreeBSD.org
 
+BUILD_DEPENDS=	${NONEXISTENT}:${PORTSDIR}/lang/tcl84:build
 LIB_DEPENDS=	tcl84.1:${PORTSDIR}/lang/tcl84
 
 NO_LATEST_LINK=	yes