diff --git a/devel/blueprint-compiler/Makefile b/devel/blueprint-compiler/Makefile
index a4448692b953..28ba2af8fecb 100644
--- a/devel/blueprint-compiler/Makefile
+++ b/devel/blueprint-compiler/Makefile
@@ -1,26 +1,28 @@
 PORTNAME=	blueprint-compiler
 DISTVERSIONPREFIX=	v
 DISTVERSION=	0.4.0
 CATEGORIES=	devel
 
 MAINTAINER=	jbeich@FreeBSD.org
 COMMENT=	Markup language for GTK user interfaces
 WWW=		https://gitlab.gnome.org/jwestman/blueprint-compiler
 
 LICENSE=	LGPL3+
 LICENSE_FILE=	${WRKSRC}/COPYING
 
+TEST_DEPENDS=	gtk4>0:x11-toolkits/gtk40
+
 USES=		gnome meson python shebangfix
 USE_GITLAB=	yes
 USE_GNOME=	pygobject3
 GL_SITE=	https://gitlab.gnome.org
 GL_ACCOUNT=	jwestman
 GL_COMMIT=	75a6d95988736ec0471d22ceb07579c0cedac2ad
 SHEBANG_FILES=	${PORTNAME}.py
 NO_ARCH=	yes
 
 post-patch:
 # Derive Python version from Meson
 	@${REINPLACE_CMD} -e "s,'python3',," ${WRKSRC}/meson.build
 
 .include <bsd.port.mk>