diff --git a/src/Microsoft.AspNetCore.Razor/Compilation/TagHelpers/TagHelperDescriptorComparer.cs b/src/Microsoft.AspNetCore.Razor/Compilation/TagHelpers/TagHelperDescriptorComparer.cs
index 560ebf32b6..3bf1250a76 100644
--- a/src/Microsoft.AspNetCore.Razor/Compilation/TagHelpers/TagHelperDescriptorComparer.cs
+++ b/src/Microsoft.AspNetCore.Razor/Compilation/TagHelpers/TagHelperDescriptorComparer.cs
@@ -2,6 +2,7 @@
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
+using System.Collections;
 using System.Collections.Generic;
 using System.Linq;
 using Microsoft.Extensions.Internal;
@@ -61,7 +62,10 @@ namespace Microsoft.AspNetCore.Razor.Compilation.TagHelpers
                     descriptorX.AllowedChildren.OrderBy(child => child, StringComparer.OrdinalIgnoreCase),
                     descriptorY.AllowedChildren.OrderBy(child => child, StringComparer.OrdinalIgnoreCase),
                     StringComparer.OrdinalIgnoreCase))) &&
-                descriptorX.TagStructure == descriptorY.TagStructure;
+                descriptorX.TagStructure == descriptorY.TagStructure &&
+                Enumerable.SequenceEqual(
+                    descriptorX.PropertyBag.OrderBy(propertyX => propertyX.Key, StringComparer.Ordinal),
+                    descriptorY.PropertyBag.OrderBy(propertyY => propertyY.Key, StringComparer.Ordinal));
         }
 
         /// <inheritdoc />