diff --git a/README.md b/README.md
index 9d96288..7278132 100644
--- a/README.md
+++ b/README.md
@@ -126,12 +126,12 @@ start the backend server and the build server separately:
   
     eval $(gcloud beta emulators datastore env-init --data-dir=DATA-DIR)
     ./bin/dsadmin.js
-    npm start-build
+    npm run start-build
 
 or using command-line arguments:
 
     ./bin/dsadmin.js --project=my-datastore-project --datastore-emulator-host=localhost:8081
-    npm start-build
+    npm run start-build
 
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