diff --git a/.gitignore b/.gitignore
index a89ffdab632a2cd881f66cb20e1f154c17cc9387..d2bd7089a35ed5496464734e2026397e3a802baa 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,6 +4,9 @@
 .*
 !/.git*
 
+# backup files
+*~
+
 # extracted libraries
 /libs/**
 !/libs/*.zip