diff --git a/src/Umbraco.Core/Models/PublicAccessEntry.cs b/src/Umbraco.Core/Models/PublicAccessEntry.cs
index 58e3b69394..4af6f9536a 100644
--- a/src/Umbraco.Core/Models/PublicAccessEntry.cs
+++ b/src/Umbraco.Core/Models/PublicAccessEntry.cs
@@ -107,9 +107,9 @@ namespace Umbraco.Core.Models
 
         public void ClearRules()
         {
-            foreach (var rule in _ruleCollection)
+            for (var i = _ruleCollection.Count - 1; i >= 0; i--)
             {
-                RemoveRule(rule);
+                RemoveRule(_ruleCollection[i]);
             }
         }