diff --git a/src/Razor/Microsoft.CodeAnalysis.Razor/src/BindTagHelperDescriptorProvider.cs b/src/Razor/Microsoft.CodeAnalysis.Razor/src/BindTagHelperDescriptorProvider.cs
index cd1b335103..f055cc3bfd 100644
--- a/src/Razor/Microsoft.CodeAnalysis.Razor/src/BindTagHelperDescriptorProvider.cs
+++ b/src/Razor/Microsoft.CodeAnalysis.Razor/src/BindTagHelperDescriptorProvider.cs
@@ -437,7 +437,7 @@ namespace Microsoft.CodeAnalysis.Razor
                             changeAttribute.Name);
 
                         attribute.Name = "bind-" + valueAttribute.Name;
-                        attribute.TypeName = valueAttribute.TypeName;
+                        attribute.TypeName = changeAttribute.TypeName;
                         attribute.IsEnum = valueAttribute.IsEnum;
 
                         // WTE has a bug 15.7p1 where a Tag Helper without a display-name that looks like
diff --git a/src/Razor/Microsoft.CodeAnalysis.Razor/test/BindTagHelperDescriptorProviderTest.cs b/src/Razor/Microsoft.CodeAnalysis.Razor/test/BindTagHelperDescriptorProviderTest.cs
index bb8025c2bc..0265459112 100644
--- a/src/Razor/Microsoft.CodeAnalysis.Razor/test/BindTagHelperDescriptorProviderTest.cs
+++ b/src/Razor/Microsoft.CodeAnalysis.Razor/test/BindTagHelperDescriptorProviderTest.cs
@@ -122,11 +122,11 @@ namespace Test
 
             Assert.Equal("bind-MyProperty", attribute.Name);
             Assert.Equal("MyProperty", attribute.GetPropertyName());
-            Assert.Equal("string Test.MyComponent.MyProperty", attribute.DisplayName);
+            Assert.Equal("System.Action<System.String> Test.MyComponent.MyProperty", attribute.DisplayName);
 
             // Defined from the property type
-            Assert.Equal("System.String", attribute.TypeName);
-            Assert.True(attribute.IsStringProperty);
+            Assert.Equal("System.Action<System.String>", attribute.TypeName);
+            Assert.False(attribute.IsStringProperty);
             Assert.False(attribute.IsBooleanProperty);
             Assert.False(attribute.IsEnum);
         }
@@ -237,11 +237,11 @@ namespace Test
 
             Assert.Equal("bind-MyProperty", attribute.Name);
             Assert.Equal("MyProperty", attribute.GetPropertyName());
-            Assert.Equal("string Test.MyComponent.MyProperty", attribute.DisplayName);
+            Assert.Equal("Microsoft.AspNetCore.Components.EventCallback<System.String> Test.MyComponent.MyProperty", attribute.DisplayName);
 
             // Defined from the property type
-            Assert.Equal("System.String", attribute.TypeName);
-            Assert.True(attribute.IsStringProperty);
+            Assert.Equal("Microsoft.AspNetCore.Components.EventCallback<System.String>", attribute.TypeName);
+            Assert.False(attribute.IsStringProperty);
             Assert.False(attribute.IsBooleanProperty);
             Assert.False(attribute.IsEnum);
         }