diff --git a/.gitignore b/.gitignore
index f69db87ad5a5226535559b6965e771d975ded103..9f83a53d778bb59be1c3a32559f6e4a504b97137 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,6 +4,9 @@
 .*
 !/.git*
 
+# backup files
+*~
+
 # extracted libraries
 /libs/**
 !/libs/*.zip