diff --git a/.gitignore b/.gitignore
index 2b925b3d4f..cd2a225541 100644
--- a/.gitignore
+++ b/.gitignore
@@ -32,6 +32,7 @@ codekit-config.json
 ### Internationalization artifacts
 *.mo
 *.po
+*.prob
 !django.po
 !django.mo
 !djangojs.po