diff --git a/.hgignore b/.hgignore
index 22fd4a30a8..0e26f1afb0 100644
--- a/.hgignore
+++ b/.hgignore
@@ -99,6 +99,8 @@ src/_UpgradeReport_Files
 src/*/sm-ssc.lib
 src/*/StepMania.lib
 src/libtom*/*/libtom*.lib
+src/sm5-net2010.sdf
+src/sm5-net2010.opensdf
 syntax: regexp
 .*\#.*\#$
 glob:Cache/Banners/AdditionalSongs_Airspace Preview_Derailed_Derailed bn.png