diff --git a/docs/INSTALL.md b/docs/INSTALL.md
index 7dcc9cc..0fccff7 100644
--- a/docs/INSTALL.md
+++ b/docs/INSTALL.md
@@ -45,7 +45,7 @@ edit `add_card_data.sql` to set up the individual bolt card records
 
 ### database creation
 edit `create_db.sql` to set the cardapp password  
-`$ sudo -u postgres -i`  
+`$ sudo -u postgres createuser -s ubuntu`  
 `$ ./s_create_db`  
 
 ### boltcard service install