diff --git a/.hgignore b/.hgignore
index 7db040164..bd6e7ee93 100644
--- a/.hgignore
+++ b/.hgignore
@@ -8,7 +8,12 @@
 ^doc/html
 ^doc/latex
 ^doc/ns3-object.txt
-^\.lock-wafbuild
+^\.lock-waf_darwin_build
+^\.lock-waf_linux2_build
+^\.lock-waf_cygwin_build
+^\.lock-waf_freebsd7_build
+^\.lock-waf_freebsd8_build
+^\.lock-waf_freebsd9_build
 ^\.waf
 ^doc/introspected-doxygen\.h$
 .*\.py[co]$