diff --git a/docs/modules/ROOT/pages/pubsub.adoc b/docs/modules/ROOT/pages/pubsub.adoc
index 8fa9886c..90bd6c07 100644
--- a/docs/modules/ROOT/pages/pubsub.adoc
+++ b/docs/modules/ROOT/pages/pubsub.adoc
@@ -161,7 +161,7 @@ The extension provides a Dev Service that can be used to run a local PubSub emul
 
 You can also set the
 
-* `quarkus.google.cloud.pubsub.devservice.port` property to change the port on which the emulator will be started (by default there is no port set, so the emulator will use a random port)
+* `quarkus.google.cloud.pubsub.devservice.emulator-port` property to change the port on which the emulator will be started (by default there is no port set, so the emulator will use a random port)
 
 === Using the Dev Service