diff --git a/README.md b/README.md
index 616065b43..bda9d7d72 100644
--- a/README.md
+++ b/README.md
@@ -72,7 +72,13 @@ If you're working on a feature of a provider and want to verify it is functionin
 To run the acceptance tests, invoke `make testacc`:
 
 ```sh
-$ make testacc TEST=./builtin/providers/aws TESTARGS='-run=VPC'
+$ make testacc TEST=./builtin/providers/aws TESTARGS='-run=Vpc'
+go generate ./...
+TF_ACC=1 go test ./builtin/providers/aws -v -run=Vpc -timeout 45m
+=== RUN TestAccVpc_basic
+2015/02/10 14:11:17 [INFO] Test: Using us-west-2 as test region
+[...]
+[...]
 ...
 ```