diff --git a/yo-cordapp/README.md b/yo-cordapp/README.md
index aacc1328..1ade4bf2 100644
--- a/yo-cordapp/README.md
+++ b/yo-cordapp/README.md
@@ -28,4 +28,4 @@ X500 name in the node shell. Note you can't sent a Yo! to yourself because that'
 
 To see all the Yo's! other nodes have sent you in your vault (you do not store the Yo's! you send yourself), run:
 
-    run vaultQuery contractStateType: com.yo.states.YoState
+    run vaultQuery contractStateType: net.corda.examples.yo.states.YoState