diff --git a/src/Mvc/Mvc.Core/ref/Microsoft.AspNetCore.Mvc.Core.netcoreapp3.0.cs b/src/Mvc/Mvc.Core/ref/Microsoft.AspNetCore.Mvc.Core.netcoreapp3.0.cs
index 2af1c78d22..b270c45725 100644
--- a/src/Mvc/Mvc.Core/ref/Microsoft.AspNetCore.Mvc.Core.netcoreapp3.0.cs
+++ b/src/Mvc/Mvc.Core/ref/Microsoft.AspNetCore.Mvc.Core.netcoreapp3.0.cs
@@ -2320,7 +2320,6 @@ namespace Microsoft.AspNetCore.Mvc.ModelBinding
         public static string CreateIndexModelName(string parentName, int index) { throw null; }
         public static string CreateIndexModelName(string parentName, string index) { throw null; }
         public static string CreatePropertyModelName(string prefix, string propertyName) { throw null; }
-        public static Microsoft.AspNetCore.Mvc.ModelBinding.ModelMetadata GetPathMetadata(Microsoft.AspNetCore.Mvc.ModelBinding.ModelMetadata metadata, string path) { throw null; }
     }
     public abstract partial class ObjectModelValidator : Microsoft.AspNetCore.Mvc.ModelBinding.Validation.IObjectModelValidator
     {
diff --git a/src/Mvc/Mvc.Core/src/Formatters/SystemTextJsonInputFormatter.cs b/src/Mvc/Mvc.Core/src/Formatters/SystemTextJsonInputFormatter.cs
index 63dadc82b2..d584f47f82 100644
--- a/src/Mvc/Mvc.Core/src/Formatters/SystemTextJsonInputFormatter.cs
+++ b/src/Mvc/Mvc.Core/src/Formatters/SystemTextJsonInputFormatter.cs
@@ -81,8 +81,7 @@ namespace Microsoft.AspNetCore.Mvc.Formatters
 
                 var formatterException = new InputFormatterException(jsonException.Message, jsonException);
 
-                var metadata = ModelNames.GetPathMetadata(context.Metadata, path);
-                context.ModelState.TryAddModelError(path, formatterException, metadata);
+                context.ModelState.TryAddModelError(path, formatterException, context.Metadata);
 
                 Log.JsonInputException(_logger, jsonException);
 
diff --git a/src/Mvc/Mvc.Core/src/ModelBinding/ModelNames.cs b/src/Mvc/Mvc.Core/src/ModelBinding/ModelNames.cs
index 4f366e2a70..185c8345e0 100644
--- a/src/Mvc/Mvc.Core/src/ModelBinding/ModelNames.cs
+++ b/src/Mvc/Mvc.Core/src/ModelBinding/ModelNames.cs
@@ -39,51 +39,5 @@ namespace Microsoft.AspNetCore.Mvc.ModelBinding
 
             return prefix + "." + propertyName;
         }
-
-        public static ModelMetadata GetPathMetadata(ModelMetadata metadata, string path)
-        {
-            var index = 0;
-            while (index >= 0 && index < path.Length)
-            {
-                if (path[index] == '[')
-                {
-                    // At start of "[0]".
-                    if (metadata.ElementMetadata == null)
-                    {
-                        // Odd case but don't throw just because ErrorContext had an odd-looking path.
-                        break;
-                    }
-
-                    metadata = metadata.ElementMetadata;
-                    index = path.IndexOf(']', index);
-                }
-                else if (path[index] == '.' || path[index] == ']')
-                {
-                    // Skip '.' in "prefix.property" or "[0].property" or ']' in "[0]".
-                    index++;
-                }
-                else
-                {
-                    // At start of "property", "property." or "property[0]".
-                    var endIndex = path.IndexOfAny(new[] { '.', '[' }, index);
-                    if (endIndex == -1)
-                    {
-                        endIndex = path.Length;
-                    }
-
-                    var propertyName = path.Substring(index, endIndex - index);
-                    if (metadata.Properties[propertyName] == null)
-                    {
-                        // Odd case but don't throw just because ErrorContext had an odd-looking path.
-                        break;
-                    }
-
-                    metadata = metadata.Properties[propertyName];
-                    index = endIndex;
-                }
-            }
-
-            return metadata;
-        }
     }
 }
diff --git a/src/Mvc/Mvc.NewtonsoftJson/src/NewtonsoftJsonInputFormatter.cs b/src/Mvc/Mvc.NewtonsoftJson/src/NewtonsoftJsonInputFormatter.cs
index 49a5581b87..8975f9f426 100644
--- a/src/Mvc/Mvc.NewtonsoftJson/src/NewtonsoftJsonInputFormatter.cs
+++ b/src/Mvc/Mvc.NewtonsoftJson/src/NewtonsoftJsonInputFormatter.cs
@@ -243,7 +243,7 @@ namespace Microsoft.AspNetCore.Mvc.Formatters
 
                 exception = eventArgs.ErrorContext.Error;
 
-                var metadata = ModelNames.GetPathMetadata(context.Metadata, path);
+                var metadata = GetPathMetadata(context.Metadata, path);
                 var modelStateException = WrapExceptionForModelState(exception);
                 context.ModelState.TryAddModelError(key, modelStateException, metadata);
 
@@ -301,6 +301,52 @@ namespace Microsoft.AspNetCore.Mvc.Formatters
         protected virtual void ReleaseJsonSerializer(JsonSerializer serializer)
             => _jsonSerializerPool.Return(serializer);
 
+        private ModelMetadata GetPathMetadata(ModelMetadata metadata, string path)
+        {
+            var index = 0;
+            while (index >= 0 && index < path.Length)
+            {
+                if (path[index] == '[')
+                {
+                    // At start of "[0]".
+                    if (metadata.ElementMetadata == null)
+                    {
+                        // Odd case but don't throw just because ErrorContext had an odd-looking path.
+                        break;
+                    }
+
+                    metadata = metadata.ElementMetadata;
+                    index = path.IndexOf(']', index);
+                }
+                else if (path[index] == '.' || path[index] == ']')
+                {
+                    // Skip '.' in "prefix.property" or "[0].property" or ']' in "[0]".
+                    index++;
+                }
+                else
+                {
+                    // At start of "property", "property." or "property[0]".
+                    var endIndex = path.IndexOfAny(new[] { '.', '[' }, index);
+                    if (endIndex == -1)
+                    {
+                        endIndex = path.Length;
+                    }
+
+                    var propertyName = path.Substring(index, endIndex - index);
+                    if (metadata.Properties[propertyName] == null)
+                    {
+                        // Odd case but don't throw just because ErrorContext had an odd-looking path.
+                        break;
+                    }
+
+                    metadata = metadata.Properties[propertyName];
+                    index = endIndex;
+                }
+            }
+
+            return metadata;
+        }
+
         private Exception WrapExceptionForModelState(Exception exception)
         {
             // In 2.0 and earlier we always gave a generic error message for errors that come from JSON.NET