diff --git a/pl0/README.md b/pl0/README.md
index 07b4834..23de25c 100644
--- a/pl0/README.md
+++ b/pl0/README.md
@@ -9,6 +9,15 @@ PL/0 language example
   * LLVM Code generation
   * LLVM JIT execution (fast!)
 
+Build
+-----
+
+```
+brew install llvm
+export PATH="$PATH:/usr/local/opt/llvm/bin"
+make
+```
+
 Usage
 -----