diff --git a/linux/assets/mozconfig b/linux/assets/mozconfig
index 86a3d36..9db35c1 100644
--- a/linux/assets/mozconfig
+++ b/linux/assets/mozconfig
@@ -4,6 +4,7 @@ export MOZBUILD=$HOME/.mozbuild
 ac_add_options --target=x86_64-pc-mingw32
 ac_add_options --enable-bootstrap
 export WINSYSROOT="$MOZBUILD/win-cross/vs"
+export MIDL="$MOZBUILD/wine/bin/widl"
 
 ###
 # TODO : fixme