diff --git a/doc/INSTALL.md b/doc/INSTALL.md
index ff6aa7e4b..8e52e7355 100644
--- a/doc/INSTALL.md
+++ b/doc/INSTALL.md
@@ -246,7 +246,7 @@ To Build on macOS
 
 Assuming you have Xcode and Homebrew installed. Install dependencies:
 
-    $ brew install autoconf automake libtool python3 gmp gnu-sed gettext libsodium
+    $ brew install autoconf automake libtool python3 gmp gnu-sed gettext libsodium protobuf
     $ ln -s /usr/local/Cellar/gettext/0.20.1/bin/xgettext /usr/local/opt
     $ export PATH="/usr/local/opt:$PATH"