diff --git a/docs/INSTALL.md b/docs/INSTALL.md
index 38801227..b2d695ab 100644
--- a/docs/INSTALL.md
+++ b/docs/INSTALL.md
@@ -212,10 +212,11 @@ the following:
 - Additionally, since `lnd` uses
   [ZeroMQ](https://github.com/bitcoin/bitcoin/blob/master/doc/zmq.md) to
   interface with `bitcoind`, *your `bitcoind` installation must be compiled with
-  ZMQ*. If you installed it from source, this is likely the case, but if you
-  installed it via Homebrew in the past it may not be included ([this has now
-  been fixed](https://github.com/Homebrew/homebrew-core/pull/23088) in the
-  latest Homebrew recipe for bitcoin)
+  ZMQ*. Note that if you installed `bitcoind` from source and ZMQ was not present, 
+  then ZMQ support will be disabled, and `lnd` will quit on a `connection refused` error. 
+  If you installed `bitcoind` via Homebrew in the past ZMQ may not be included 
+  ([this has now been fixed](https://github.com/Homebrew/homebrew-core/pull/23088) 
+  in the latest Homebrew recipe for bitcoin)
 - Configure the `bitcoind` instance for ZMQ with `--zmqpubrawblock` and
   `--zmqpubrawtx` (the latter is optional but allows you to see unconfirmed
   transactions in your wallet). They must be combined in the same ZMQ socket