diff --git a/.hgignore b/.hgignore
index d4f666f85..8f850c89e 100644
--- a/.hgignore
+++ b/.hgignore
@@ -38,5 +38,7 @@ cov-int/
 # Ignore Mercurial .orig files
 *.orig
 
+*.rej
+
 # Ignore Makefile
 Makefile