diff --git a/resources/inc/class.bo_resources.inc.php b/resources/inc/class.bo_resources.inc.php
index c5f88b1adf..632990fe2f 100755
--- a/resources/inc/class.bo_resources.inc.php
+++ b/resources/inc/class.bo_resources.inc.php
@@ -97,11 +97,15 @@ class bo_resources
 			{
 				$readonlys["new_acc[$resource[res_id]]"] = true;
 			}
-			if (!$resource['bookable'] /* && calender-acl viewable */)
+			if (!$resource['bookable'])
 			{
 				$readonlys["bookable[$resource[res_id]]"] = true;
 				$readonlys["calendar[$resource[res_id]]"] = true;
 			}
+			if(!$this->acl->is_permitted($resource['cat_id'],EGW_ACL_CALREAD))
+			{
+				$readonlys["calendar[$resource[res_id]]"] = true;
+			}
 			if (!$resource['buyable'])
 			{
 				$readonlys["buyable[$resource[res_id]]"] = true;