diff --git a/devel/qschematic/Makefile b/devel/qschematic/Makefile
index 8a4837300275..f83a0d2c80dc 100644
--- a/devel/qschematic/Makefile
+++ b/devel/qschematic/Makefile
@@ -1,31 +1,31 @@
 PORTNAME=	qschematic
 DISTVERSION=	1.6.0
 CATEGORIES=	devel
 
 MAINTAINER=	jbo@FreeBSD.org
 COMMENT=	Qt/C++ library providing widgets for drawing diagrams
 WWW=		https://github.com/simulton/qschematic
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/license.txt
 
 LIB_DEPENDS=	libgpds.so:devel/gpds
 
-USES=		cmake compiler:c++20-lang qt:6
+USES=		cmake compiler:c++20-lang pkgconfig qt:6
 USE_QT=		base
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	simulton
 GH_PROJECT=	QSchematic
 
 CMAKE_ARGS=	-DQSCHEMATIC_DEPENDENCY_GPDS_TARGET:STRING="gpds::gpds-shared"
 CMAKE_OFF=	QSCHEMATIC_BUILD_DEMO QSCHEMATIC_DEPENDENCY_GPDS_DOWNLOAD
 
 # Since the update from USES qt:5 to qt:6 there appears to be some overlinking
 # resulting in pulling in OpenGL which is not needed by upstream.
 # Put a "workaround" in place until we get to investigate this.
 LDFLAGS+=	-Wl,--as-needed
 
 PLIST_SUB=	DISTVERSION=${DISTVERSION}
 
 .include <bsd.port.mk>