diff --git a/tutorial/.cvsignore b/tutorial/.cvsignore
index b68dc9afd0ab50a28a51e03d7e66fcd5de04561d..170df6e536f5d4259ddfea4f4c0a69bc82760215 100644
--- a/tutorial/.cvsignore
+++ b/tutorial/.cvsignore
@@ -1,3 +1,4 @@
+.nfs*
 tutorial.html
 illustration*.gif
 ___tmp.*
diff --git a/tutorial/.gitignore b/tutorial/.gitignore
index 6e7c17b67aad224a3fe6e6bd853156cebd26a9e3..b78b05803b18dcc050649d7089d9ffb5fe0dccb7 100644
--- a/tutorial/.gitignore
+++ b/tutorial/.gitignore
@@ -1,3 +1,4 @@
+/.nfs*
 /tutorial.html
 /illustration*.gif
 /___tmp.*