diff --git a/README.md b/README.md
index 020012f3c..72dbded0b 100644
--- a/README.md
+++ b/README.md
@@ -176,8 +176,8 @@ The following environment variables can be used to configure Livebook on boot:
     Password-protected notebooks will receive a random password,
     unless LIVEBOOK_APPS_PATH_PASSWORD is set.
 
-  * LIVEBOOK_APPS_PATH_HUB_ID - the Hub id to use for all apps
-    deployed from LIVEBOOK_APPS_PATH.
+  * LIVEBOOK_APPS_PATH_HUB_ID - deploy only the notebooks in
+    LIVEBOOK_APPS_PATH that belong to the given Hub ID
 
   * LIVEBOOK_APPS_PATH_PASSWORD - the password to use for all protected apps
     deployed from LIVEBOOK_APPS_PATH.