diff --git a/sources/Application/UI/Base/Layout/Extension/ExtensionDetailsUIBlockFactory.php b/sources/Application/UI/Base/Layout/Extension/ExtensionDetailsUIBlockFactory.php
index fef2badc24..989952f77a 100644
--- a/sources/Application/UI/Base/Layout/Extension/ExtensionDetailsUIBlockFactory.php
+++ b/sources/Application/UI/Base/Layout/Extension/ExtensionDetailsUIBlockFactory.php
@@ -54,6 +54,7 @@ class ExtensionDetailsUIBlockFactory extends AbstractUIBlockFactory
 			$oExtensionDetails->GetToggler()->SetIsToggled(false);
 			$oExtensionDetails->GetToggler()->SetIsDisabled(true);
 		} elseif ($bAlreadyPartOfITop) {
+			$bSelected = true;
 			$oExtensionDetails->GetToggler()->SetIsToggled(true);
 			$oExtensionDetails->GetToggler()->SetIsDisabled(true);
 		} elseif ((!$bUninstallable || $bRemote) && !$bDisabled) {