diff --git a/.gitignore b/.gitignore
index 57c973d47..ce0838357 100644
--- a/.gitignore
+++ b/.gitignore
@@ -55,6 +55,7 @@ gtags.files
 ## Configuration/log files
 minetest.conf
 debug.txt
+debug.txt.1
 
 ## Other files generated by Minetest
 screenshot_*.png