diff --git a/docs/installing-solidity.rst b/docs/installing-solidity.rst
index 33bba29ba..47388c257 100644
--- a/docs/installing-solidity.rst
+++ b/docs/installing-solidity.rst
@@ -61,7 +61,7 @@ Set up Homebrew:
     brew upgrade
 
     brew install boost --c++11             # this takes a while
-    brew install cmake cryptopp gmp
+    brew install cmake cryptopp gmp jsoncpp
 
 Ubuntu Trusty (14.04)
 ---------------------