diff --git a/lam/HISTORY b/lam/HISTORY
index 6fe95395..bd9b08dd 100644
--- a/lam/HISTORY
+++ b/lam/HISTORY
@@ -1,4 +1,4 @@
-September 2019
+September 2019 6.9
   - Group account types can show member+owner count in list view
   - LAM Pro:
    -> New self service settings for login and main page footer
diff --git a/lam/lib/modules/posixGroup.inc b/lam/lib/modules/posixGroup.inc
index 3c20da37..12368c9e 100644
--- a/lam/lib/modules/posixGroup.inc
+++ b/lam/lib/modules/posixGroup.inc
@@ -353,6 +353,7 @@ class posixGroup extends baseModule implements passwordService {
 		$addSelect->setMultiSelect(true);
 		$addSelect->setTransformSingleSelect(false);
 		$addSelect->setHasDescriptiveElements(true);
+		$addSelect->enableDynamicScrolling();
 		$return->addElement($addSelect);
 		$return->addNewLine();
 		$return->addElement(new htmlOutputText(''));