diff --git a/README.md b/README.md
index e9dc2a1..060a1bf 100644
--- a/README.md
+++ b/README.md
@@ -43,6 +43,7 @@ Local development requires a version of iojs/Node that is compatible with [jsdom
 
 ```
 git clone https://github.com/robertknight/passcards
+npm install
 make all
 ```