diff --git a/.hgignore b/.hgignore
index 3dda95c9712..e9286447d69 100644
--- a/.hgignore
+++ b/.hgignore
@@ -39,6 +39,7 @@ Parser/pgen.stamp$
 
 syntax: glob
 libpython*.a
+*.swp
 *.o
 *.pyc
 *.pyo