diff --git a/Build.md b/Build.md
index 0b30d5d..9cd1241 100644
--- a/Build.md
+++ b/Build.md
@@ -148,6 +148,11 @@ To build from source you'll need `sudo apt install zlib1g-dev ncurses-dev`
 
 On Ubuntu 16.04 install g++-7 via [these directions](https://gist.github.com/jlblancoc/99521194aba975286c80f93e47966dc5)
 
+### Void Linux
+
+To build **ccls** on Void Linux with system Clang+LLVM, you will need to add
+`-DLLVM_ENABLE_RTTI=on`.
+
 ### Red Hat / CentOS
 
 Older versions (6.x) use an older GNU libc which requires