diff --git a/cad/irsim/Makefile b/cad/irsim/Makefile
index 5890dd28e968..e95298888718 100644
--- a/cad/irsim/Makefile
+++ b/cad/irsim/Makefile
@@ -6,8 +6,8 @@
 #
 
 PORTNAME=	irsim
-PORTVERSION=	9.7.64
-PORTREVISION=	1
+PORTVERSION=	9.7.66
+PORTREVISION=	0
 CATEGORIES=	cad
 MASTER_SITES=	http://opencircuitdesign.com/irsim/archive/
 EXTRACT_SUFX=	.tgz
diff --git a/cad/irsim/distinfo b/cad/irsim/distinfo
index bed0ddf511a0..431f36771b47 100644
--- a/cad/irsim/distinfo
+++ b/cad/irsim/distinfo
@@ -1,3 +1,3 @@
-MD5 (irsim-9.7.64.tgz) = f64862af4309b1e638b3cf153fe53d7a
-SHA256 (irsim-9.7.64.tgz) = f3ef7e55eab23e89247c9314147be39d93278939e7d713bf26f09dc83ebfff2d
-SIZE (irsim-9.7.64.tgz) = 451562
+MD5 (irsim-9.7.66.tgz) = 4f31d221cb5796e4c1dd2e8474d31a9c
+SHA256 (irsim-9.7.66.tgz) = 43345fc37a2621b059f8f6eee904120ec09dba8f70e1dccf9253b126983d58cc
+SIZE (irsim-9.7.66.tgz) = 454106
diff --git a/cad/irsim/pkg-plist b/cad/irsim/pkg-plist
index 1f1ad444e1af..f7983b533270 100644
--- a/cad/irsim/pkg-plist
+++ b/cad/irsim/pkg-plist
@@ -31,6 +31,7 @@ lib/irsim/prm/tsmc35p.20.n98tp.3.3.prm
 %%TCL%%lib/irsim/tcl/bitmaps/rright.xbm
 %%TCL%%lib/irsim/tcl/console.tcl
 %%TCL%%lib/irsim/tcl/cver.tcl
+%%TCL%%lib/irsim/tcl/diglib.so
 %%TCL%%lib/irsim/tcl/irsim.tcl
 %%TCL%%lib/irsim/tcl/irsimexec
 %%TCL%%lib/irsim/tcl/random.so