diff --git a/.hgignore b/.hgignore
index c8752c1fa34..a937d4eecbc 100644
--- a/.hgignore
+++ b/.hgignore
@@ -34,6 +34,7 @@ src/Make.inc
 src/cmd/6a/6a
 src/cmd/?l/enam.c
 src/cmd/cc/y.output
+src/cmd/dist/dist.dSYM
 src/cmd/gc/mkbuiltin1
 src/cmd/gc/opnames.h
 src/cmd/gc/y.output