diff --git a/.gitignore b/.gitignore
index 5e8112bb4..18c434a75 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,6 @@ bin/
 *.ncb
 *.suo
 *.ncb
-*.suo
\ No newline at end of file
+*.suo
+*.sdf
+*.bak