diff --git a/README.md b/README.md
index 783593b05..adc574906 100644
--- a/README.md
+++ b/README.md
@@ -71,6 +71,11 @@ int main()
 
 ## How to Build
 
-### Ubuntu
+### Installing missing dependencies
+
+#### Ubuntu
     sudo apt-get install build-essential libtcmalloc-minimal4 && sudo ln -s /usr/lib/libtcmalloc_minimal.so.4 /usr/lib/libtcmalloc_minimal.so
+
+### Building
+    git submodule init && git submodule update
     make -j$(($(grep -c '^processor' /proc/cpuinfo)+1))