1 files changed, 1 insertions, 0 deletions

diff --git a/README.md b/README.md
index 65c9b5c..2e3e55b 100644
--- a/README.md
+++ b/README.md
@@ -35,6 +35,7 @@ On Mac OS X, the program can be installed with Homebrew:
 ## Build
 I’ve only tested the build with SBCL.
 
+	$ git submodule init && git submodule update
 	$ make build