diff --git a/INSTALL.md b/INSTALL.md
index 2b9ab5e2..8a377cff 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -64,6 +64,12 @@ make install
 
 ## Install a checkout from git
 
+Pull in dependencies
+
+```
+git submodule update --init
+```
+
 Generate build system:
 
 ```