diff --git a/Makefile b/Makefile
index ba180955aadfa43565a7b644897c6ea3bdedc55a..d6010360e2ffae82270ef70544b5e9a667f683b7 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-# $Id: Makefile,v 1.325 2004-03-04 23:11:06 geuzaine Exp $
+# $Id: Makefile,v 1.326 2004-03-04 23:31:18 geuzaine Exp $
 #
 # Copyright (C) 1997-2004 C. Geuzaine, J.-F. Remacle
 #
@@ -74,6 +74,10 @@ source: source-common
            NR Triangle/triangle.* utils/commercial
 	tar zcvf gmsh-${GMSH_RELEASE}-source.tgz gmsh-${GMSH_RELEASE}
 
+nightly: source
+	rm -rf gmsh-${GMSH_RELEASE}
+	mv gmsh-${GMSH_RELEASE}-source.tgz gmsh-nightly-source.tgz
+
 source-commercial: source-common
 	cd gmsh-${GMSH_RELEASE} && rm -rf CVS */CVS */*/CVS */.globalrc ${GMSH_VERSION_FILE}\
            Triangle/triangle.* TODO doc/gmsh.html doc/FAQ doc/README.cvs\