diff --git a/doc/POST_INSTALL.md b/doc/POST_INSTALL.md
index 56dc794..d617b01 100644
--- a/doc/POST_INSTALL.md
+++ b/doc/POST_INSTALL.md
@@ -1,7 +1,7 @@
-We have added a sandbox domain : __SANDBOXDOMAIN__ for you but you still need to configure your DNS and generate the Let's Encrypt Certificates for it.
+We have added a sandbox domain: __SANDBOXDOMAIN__ for you but you still need to configure your DNS and generate the Let's Encrypt Certificates for it.
 You will need also to restart CryptPad service after this is done.
 
-Then you can please open your __APP__ domain: https://__DOMAIN__
+Then you can please open CryptPad domain: https://__DOMAIN__
 Once CryptPad is installed, create an account via the Sign Up button on the home page which will take you to the Register page.
 To make this account an instance administrator:
 
diff --git a/doc/POST_UPGRADE.md b/doc/POST_UPGRADE.md
index 24f8af0..6023335 100644
--- a/doc/POST_UPGRADE.md
+++ b/doc/POST_UPGRADE.md
@@ -1,5 +1,5 @@
 We have added a sandbox domain for you but you still need to configure your DNS and generate Let's Encrypt Certificates for it !!
-If not already done, then you can please open your $app domain: https://__DOMAIN__
+If not already done, then you can please open CryptPad domain: https://__DOMAIN__
 
 Create an account via the Register button on the home page. To make this account an instance administrator:
 1. Copy the public key found in User Menu (avatar at the top right) > Settings > Account > Public Signing Key