diff --git a/README.md b/README.md
index 684c168ca2..14cef36b8c 100644
--- a/README.md
+++ b/README.md
@@ -290,7 +290,7 @@ $ rustup update
 On Linux systems you may need to install libssl-dev, pkg-config, zlib1g-dev, etc.  On Ubuntu:
 
 ```bash
-$ sudo apt-get install libssl-dev pkg-config zlib1g-dev
+$ sudo apt-get install libssl-dev pkg-config zlib1g-dev llvm
 ```
 
 Download the source code: