diff --git a/graphics/pgplot/Makefile b/graphics/pgplot/Makefile
index e36af7ca5fcf..a9853fe16686 100644
--- a/graphics/pgplot/Makefile
+++ b/graphics/pgplot/Makefile
@@ -8,7 +8,7 @@
 PORTNAME=       pgplot
 PORTVERSION=	5.2
 CATEGORIES=     graphics
-MASTER_SITES=   ftp://astro.caltech.edu/pub/pgplot/
+MASTER_SITES=   ftp://ftp.astro.caltech.edu/pub/pgplot/
 DISTNAME=       ${PORTNAME}${PORTVERSION}
 
 MAINTAINER=	jmz@FreeBSD.org