diff --git a/.hgignore b/.hgignore
index c808140588..e686255af5 100644
--- a/.hgignore
+++ b/.hgignore
@@ -40,6 +40,7 @@ test/times.out
 test/garbage/*.out
 
 syntax:regexp
+^bin/
 ^pkg/
 ^src/cmd/(.*)/6?\1$
 ^.*/core.[0-9]*$