diff --git a/CHANGELOG.md b/CHANGELOG.md
index 933a7c8a..ad89537c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@
 - **Mailchimp**: Fixed campaign creation checking for HTTP 200 instead of 201 (always failed)
 - **ServiceController**: Exception details no longer exposed to client in test connection response
 - **Bluesky**: Replaced `md5()` with `hash('sha256', ...)` for cache key generation
+- **XML namespaces**: Fixed 9 plugin manifests with `${CLASS_NAME}` placeholder instead of actual namespace (Discord, Facebook, LinkedIn, Mailchimp, Mastodon, Slack, Telegram, Twitter, Bluesky)
 
 ## [01.04.00] --- 2026-06-21
 
diff --git a/source/packages/plg_mokosuitecross_bluesky/bluesky.xml b/source/packages/plg_mokosuitecross_bluesky/bluesky.xml
index 8db16c67..6b1da01c 100644
--- a/source/packages/plg_mokosuitecross_bluesky/bluesky.xml
+++ b/source/packages/plg_mokosuitecross_bluesky/bluesky.xml
@@ -10,7 +10,7 @@
     <license>GPL-3.0-or-later</license>
     <description>PLG_MOKOSUITECROSS_BLUESKY_DESCRIPTION</description>
 
-    <namespace path="src">Joomla\Plugin\MokoSuiteCross${CLASS_NAME}</namespace>
+    <namespace path="src">Joomla\Plugin\MokoSuiteCross\Bluesky</namespace>
 
     <files>
         <filename plugin="bluesky">bluesky.php</filename>
diff --git a/source/packages/plg_mokosuitecross_discord/discord.xml b/source/packages/plg_mokosuitecross_discord/discord.xml
index b472a6b9..9d02363f 100644
--- a/source/packages/plg_mokosuitecross_discord/discord.xml
+++ b/source/packages/plg_mokosuitecross_discord/discord.xml
@@ -10,7 +10,7 @@
     <license>GPL-3.0-or-later</license>
     <description>PLG_MOKOSUITECROSS_DISCORD_DESCRIPTION</description>
 
-    <namespace path="src">Joomla\Plugin\MokoSuiteCross${CLASS_NAME}</namespace>
+    <namespace path="src">Joomla\Plugin\MokoSuiteCross\Discord</namespace>
 
     <files>
         <filename plugin="discord">discord.php</filename>
diff --git a/source/packages/plg_mokosuitecross_facebook/facebook.xml b/source/packages/plg_mokosuitecross_facebook/facebook.xml
index 3dc2d8c4..ee13492e 100644
--- a/source/packages/plg_mokosuitecross_facebook/facebook.xml
+++ b/source/packages/plg_mokosuitecross_facebook/facebook.xml
@@ -10,7 +10,7 @@
     <license>GPL-3.0-or-later</license>
     <description>PLG_MOKOSUITECROSS_FACEBOOK_DESCRIPTION</description>
 
-    <namespace path="src">Joomla\Plugin\MokoSuiteCross${CLASS_NAME}</namespace>
+    <namespace path="src">Joomla\Plugin\MokoSuiteCross\Facebook</namespace>
 
     <files>
         <filename plugin="facebook">facebook.php</filename>
diff --git a/source/packages/plg_mokosuitecross_linkedin/linkedin.xml b/source/packages/plg_mokosuitecross_linkedin/linkedin.xml
index ca69c1b7..6de2269b 100644
--- a/source/packages/plg_mokosuitecross_linkedin/linkedin.xml
+++ b/source/packages/plg_mokosuitecross_linkedin/linkedin.xml
@@ -10,7 +10,7 @@
     <license>GPL-3.0-or-later</license>
     <description>PLG_MOKOSUITECROSS_LINKEDIN_DESCRIPTION</description>
 
-    <namespace path="src">Joomla\Plugin\MokoSuiteCross${CLASS_NAME}</namespace>
+    <namespace path="src">Joomla\Plugin\MokoSuiteCross\Linkedin</namespace>
 
     <files>
         <filename plugin="linkedin">linkedin.php</filename>
diff --git a/source/packages/plg_mokosuitecross_mailchimp/mailchimp.xml b/source/packages/plg_mokosuitecross_mailchimp/mailchimp.xml
index 9e7226ce..181d23af 100644
--- a/source/packages/plg_mokosuitecross_mailchimp/mailchimp.xml
+++ b/source/packages/plg_mokosuitecross_mailchimp/mailchimp.xml
@@ -10,7 +10,7 @@
     <license>GPL-3.0-or-later</license>
     <description>PLG_MOKOSUITECROSS_MAILCHIMP_DESCRIPTION</description>
 
-    <namespace path="src">Joomla\Plugin\MokoSuiteCross${CLASS_NAME}</namespace>
+    <namespace path="src">Joomla\Plugin\MokoSuiteCross\Mailchimp</namespace>
 
     <files>
         <filename plugin="mailchimp">mailchimp.php</filename>
diff --git a/source/packages/plg_mokosuitecross_mastodon/mastodon.xml b/source/packages/plg_mokosuitecross_mastodon/mastodon.xml
index 1e8ca179..e85167f9 100644
--- a/source/packages/plg_mokosuitecross_mastodon/mastodon.xml
+++ b/source/packages/plg_mokosuitecross_mastodon/mastodon.xml
@@ -10,7 +10,7 @@
     <license>GPL-3.0-or-later</license>
     <description>PLG_MOKOSUITECROSS_MASTODON_DESCRIPTION</description>
 
-    <namespace path="src">Joomla\Plugin\MokoSuiteCross${CLASS_NAME}</namespace>
+    <namespace path="src">Joomla\Plugin\MokoSuiteCross\Mastodon</namespace>
 
     <files>
         <filename plugin="mastodon">mastodon.php</filename>
diff --git a/source/packages/plg_mokosuitecross_slack/slack.xml b/source/packages/plg_mokosuitecross_slack/slack.xml
index 62a342f9..7885af1f 100644
--- a/source/packages/plg_mokosuitecross_slack/slack.xml
+++ b/source/packages/plg_mokosuitecross_slack/slack.xml
@@ -10,7 +10,7 @@
     <license>GPL-3.0-or-later</license>
     <description>PLG_MOKOSUITECROSS_SLACK_DESCRIPTION</description>
 
-    <namespace path="src">Joomla\Plugin\MokoSuiteCross${CLASS_NAME}</namespace>
+    <namespace path="src">Joomla\Plugin\MokoSuiteCross\Slack</namespace>
 
     <files>
         <filename plugin="slack">slack.php</filename>
diff --git a/source/packages/plg_mokosuitecross_telegram/telegram.xml b/source/packages/plg_mokosuitecross_telegram/telegram.xml
index 2c7bf351..d1b246b6 100644
--- a/source/packages/plg_mokosuitecross_telegram/telegram.xml
+++ b/source/packages/plg_mokosuitecross_telegram/telegram.xml
@@ -10,7 +10,7 @@
     <license>GPL-3.0-or-later</license>
     <description>PLG_MOKOSUITECROSS_TELEGRAM_DESCRIPTION</description>
 
-    <namespace path="src">Joomla\Plugin\MokoSuiteCross${CLASS_NAME}</namespace>
+    <namespace path="src">Joomla\Plugin\MokoSuiteCross\Telegram</namespace>
 
     <files>
         <filename plugin="telegram">telegram.php</filename>
diff --git a/source/packages/plg_mokosuitecross_twitter/twitter.xml b/source/packages/plg_mokosuitecross_twitter/twitter.xml
index 0b7fcfac..d3db3eaf 100644
--- a/source/packages/plg_mokosuitecross_twitter/twitter.xml
+++ b/source/packages/plg_mokosuitecross_twitter/twitter.xml
@@ -10,7 +10,7 @@
     <license>GPL-3.0-or-later</license>
     <description>PLG_MOKOSUITECROSS_TWITTER_DESCRIPTION</description>
 
-    <namespace path="src">Joomla\Plugin\MokoSuiteCross${CLASS_NAME}</namespace>
+    <namespace path="src">Joomla\Plugin\MokoSuiteCross\Twitter</namespace>
 
     <files>
         <filename plugin="twitter">twitter.php</filename>