diff --git a/emulators/gns3/Makefile b/emulators/gns3/Makefile
index 3a968418ab2..0f0e5da5a45 100644
--- a/emulators/gns3/Makefile
+++ b/emulators/gns3/Makefile
@@ -1,11 +1,11 @@
-# $OpenBSD: Makefile,v 1.5 2009/03/15 13:31:58 espie Exp $
+# $OpenBSD: Makefile,v 1.6 2009/04/05 13:31:38 sthen Exp $
 
 COMMENT=	graphical network simulator
 
 MODPY_EGG_VERSION=	0.5
 V=			0.6
 DISTNAME=		GNS3-$V-src
-PKGNAME=		gns3-$Vp0
+PKGNAME=		gns3-$Vp1
 
 CATEGORIES=	emulators
 
@@ -26,8 +26,10 @@ BUILD_DEPENDS=	${_MODPY_BUILD_DEPENDS}
 RUN_DEPENDS=	::x11/py-qt4 \
 		::emulators/dynamips
 
-NO_BUILD=	Yes
 NO_REGRESS=	Yes
 PKG_ARCH=	*
 
+pre-configure:
+	${SUBST_CMD} ${WRKSRC}/src/GNS3/Application.py 
+
 .include <bsd.port.mk>
diff --git a/emulators/gns3/patches/patch-src_GNS3_Application_py b/emulators/gns3/patches/patch-src_GNS3_Application_py
new file mode 100644
index 00000000000..d712a409171
--- /dev/null
+++ b/emulators/gns3/patches/patch-src_GNS3_Application_py
@@ -0,0 +1,12 @@
+$OpenBSD: patch-src_GNS3_Application_py,v 1.1 2009/04/05 13:31:38 sthen Exp $
+--- src/GNS3/Application.py.orig	Sun Apr  5 11:28:42 2009
++++ src/GNS3/Application.py	Sun Apr  5 11:28:46 2009
+@@ -259,7 +259,7 @@ class Application(QApplication, Singleton):
+ 
+         self.systconf['dynamips'] = systemDynamipsConf()
+         confo = self.systconf['dynamips']
+-        confo.path = ConfDB().get('Dynamips/hypervisor_path', unicode(''))
++        confo.path = ConfDB().get('Dynamips/hypervisor_path', unicode('${PREFIX}/bin/dynamips'))
+         confo.port = int(ConfDB().get('Dynamips/hypervisor_port', 7200))
+         confo.baseUDP = int(ConfDB().get('Dynamips/hypervisor_baseUDP', 10000))
+         confo.baseConsole = int(ConfDB().get('Dynamips/hypervisor_baseConsole', 2000))