diff --git a/linux/assets/mozconfig b/linux/assets/mozconfig
index ac9b9ff..86b302a 100644
--- a/linux/assets/mozconfig
+++ b/linux/assets/mozconfig
@@ -3,9 +3,10 @@
 export MOZBUILD=$HOME/.mozbuild
 export WINDOWSSDKDIR="$MOZBUILD/win-cross/vs/Windows Kits/10"
 ac_add_options --target=x86_64-pc-mingw32
+mk_add_options "export LOWERCASE_DIRS=$MOZBUILD/win-cross"
 
 EXTRA_PATH="$MOZBUILD/win-cross/vs/VC/Tools/MSVC/14.29.30133/bin/Hostx64/x64:"
-mk_add_options "export PATH=$EXTRA_PATH\$PATH"
+mk_add_options "export PATH=$EXTRA_PATH$PATH"
 
 export CC="$MOZBUILD/clang/bin/clang-cl"
 export CXX="$MOZBUILD/clang/bin/clang-cl"