diff --git a/reactos/lib/packet/.cvsignore b/reactos/lib/packet/.cvsignore
index 954ada33419..f0340842c49 100644
--- a/reactos/lib/packet/.cvsignore
+++ b/reactos/lib/packet/.cvsignore
@@ -15,3 +15,4 @@
 *.plg
 *.bak
 *.map
+*.tmp