diff --git a/reactos/lib/crtdll/.cvsignore b/reactos/lib/crtdll/.cvsignore
index c7e72d6939d..d49bbff2987 100644
--- a/reactos/lib/crtdll/.cvsignore
+++ b/reactos/lib/crtdll/.cvsignore
@@ -4,3 +4,4 @@
 *.o
 *.sym
 *.map
+*.tmp