diff --git a/databases/qt-pgsql-plugin/Makefile b/databases/qt-pgsql-plugin/Makefile
index 8cc28ec0236e..fbed0b435e44 100644
--- a/databases/qt-pgsql-plugin/Makefile
+++ b/databases/qt-pgsql-plugin/Makefile
@@ -21,9 +21,11 @@ COMMENT=	A plugin for QT to connect to PostgreSQL-Databases
 
 DB=		psql
 
-LIB_DEPENDS+=	pq:${PORTSDIR}/databases/postgresql7 \
+LIB_DEPENDS+=	pq:${PORTSDIR}/${POSTGRESQL_PORT} \
 		qt-mt:${PORTSDIR}/x11-toolkits/qt33
 
+POSTGRESQL_PORT?=	databases/postgresql7
+
 USE_BZIP2=	yes
 PLUGIN=		plugins/src/sqldrivers/${DB}
 DRIVER=		src/sql/drivers/${DB}