diff --git a/substrate/README.adoc b/substrate/README.adoc
index e35c6f2ab3..4525a86b03 100644
--- a/substrate/README.adoc
+++ b/substrate/README.adoc
@@ -151,7 +151,7 @@ Now with this new chainspec file, you can build a "raw" chain definition for you
 
 [source, shell]
 ----
-substrate build-spec --chain ~/chainspec.json --raw > ~/mychain.json
+substrate --chain ~/chainspec.json build-spec --raw > ~/mychain.json
 ----
 
 This can be fed into Substrate: