1 files changed, 7 insertions, 1 deletions
diff --git a/src/Middleware/OutputCaching/src/OutputCacheAttribute.cs b/src/Middleware/OutputCaching/src/OutputCacheAttribute.cs
index 1409f20f5b..7194b63948 100644
--- a/src/Middleware/OutputCaching/src/OutputCacheAttribute.cs
+++ b/src/Middleware/OutputCaching/src/OutputCacheAttribute.cs
@@ -66,12 +66,18 @@ public sealed class OutputCacheAttribute : Attribute
             return _builtPolicy;
         }
 
-        var builder = new OutputCachePolicyBuilder();
+        OutputCachePolicyBuilder builder;
 
         if (PolicyName != null)
         {
+            // Don't add the default policy if a named one is used as it could already contain it
+            builder = new OutputCachePolicyBuilder(excludeDefaultPolicy: true);
             builder.AddPolicy(new NamedPolicy(PolicyName));
         }
+        else
+        {
+            builder = new();
+        }
 
         if (_noCache != null && _noCache.Value)
         {