diff --git a/src/language/en-GB/pkg_mokobackup.sys.ini b/src/language/en-GB/pkg_mokobackup.sys.ini
index 071172a..75457fd 100644
--- a/src/language/en-GB/pkg_mokobackup.sys.ini
+++ b/src/language/en-GB/pkg_mokobackup.sys.ini
@@ -7,3 +7,4 @@
 PKG_MOKOBACKUP="Package - MokoJoomBackup"
 PKG_MOKOBACKUP_DESCRIPTION="Full-site backup and restore for Joomla — database, files, and configuration. Includes admin component, system plugin, and REST API."
 PKG_MOKOBACKUP_PHP_VERSION_ERROR="MokoJoomBackup requires PHP %s or later."
+PKG_MOKOBACKUP_POSTINSTALL_UPDATE_SITE="MokoJoomBackup installed successfully. Configure your <a href=\"%s\">Update Site</a> to receive automatic updates."
diff --git a/src/language/en-US/pkg_mokobackup.sys.ini b/src/language/en-US/pkg_mokobackup.sys.ini
index 9a32545..4936ac7 100644
--- a/src/language/en-US/pkg_mokobackup.sys.ini
+++ b/src/language/en-US/pkg_mokobackup.sys.ini
@@ -7,3 +7,4 @@
 PKG_MOKOBACKUP="Package - MokoJoomBackup"
 PKG_MOKOBACKUP_DESCRIPTION="Full-site backup and restore for Joomla — database, files, and configuration. Includes admin component, system plugin, and REST API."
 PKG_MOKOBACKUP_PHP_VERSION_ERROR="MokoJoomBackup requires PHP %s or later."
+PKG_MOKOBACKUP_POSTINSTALL_UPDATE_SITE="MokoJoomBackup installed successfully. Configure your <a href=\"%s\">Update Site</a> to receive automatic updates."
diff --git a/src/script.php b/src/script.php
index 409a88c..d5cc000 100644
--- a/src/script.php
+++ b/src/script.php
@@ -194,7 +194,7 @@ class Pkg_MokoBackupInstallerScript
 				);
 
 				Factory::getApplication()->enqueueMessage(
-					Text::sprintf('COM_MOKOBACKUP_POSTINSTALL_UPDATE_SITE', $editUrl),
+					Text::sprintf('PKG_MOKOBACKUP_POSTINSTALL_UPDATE_SITE', $editUrl),
 					'info'
 				);
 			}