diff --git a/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/.publicApi/net452/PublicAPI.Unshipped.txt b/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/.publicApi/net452/PublicAPI.Unshipped.txt
index 409287b7be6..6432d93dd94 100644
--- a/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/.publicApi/net452/PublicAPI.Unshipped.txt
+++ b/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/.publicApi/net452/PublicAPI.Unshipped.txt
@@ -1,4 +1,3 @@
-OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporter
 OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporterOptions
 OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporterOptions.ChannelOptions.get -> System.Collections.Generic.IEnumerable<Grpc.Core.ChannelOption>
 OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporterOptions.ChannelOptions.set -> void
@@ -12,5 +11,4 @@ OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporterOptions.OtlpExporterOpt
 OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporterOptions.ServiceName.get -> string
 OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporterOptions.ServiceName.set -> void
 OpenTelemetry.Trace.OtlpExporterHelperExtensions
-override OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporter.Export(in OpenTelemetry.Batch<System.Diagnostics.Activity> activityBatch) -> OpenTelemetry.ExportResult
 static OpenTelemetry.Trace.OtlpExporterHelperExtensions.AddOtlpExporter(this OpenTelemetry.Trace.TracerProviderBuilder builder, System.Action<OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporterOptions> configure = null) -> OpenTelemetry.Trace.TracerProviderBuilder
diff --git a/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/.publicApi/net46/PublicAPI.Unshipped.txt b/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/.publicApi/net46/PublicAPI.Unshipped.txt
index 409287b7be6..6432d93dd94 100644
--- a/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/.publicApi/net46/PublicAPI.Unshipped.txt
+++ b/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/.publicApi/net46/PublicAPI.Unshipped.txt
@@ -1,4 +1,3 @@
-OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporter
 OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporterOptions
 OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporterOptions.ChannelOptions.get -> System.Collections.Generic.IEnumerable<Grpc.Core.ChannelOption>
 OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporterOptions.ChannelOptions.set -> void
@@ -12,5 +11,4 @@ OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporterOptions.OtlpExporterOpt
 OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporterOptions.ServiceName.get -> string
 OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporterOptions.ServiceName.set -> void
 OpenTelemetry.Trace.OtlpExporterHelperExtensions
-override OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporter.Export(in OpenTelemetry.Batch<System.Diagnostics.Activity> activityBatch) -> OpenTelemetry.ExportResult
 static OpenTelemetry.Trace.OtlpExporterHelperExtensions.AddOtlpExporter(this OpenTelemetry.Trace.TracerProviderBuilder builder, System.Action<OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporterOptions> configure = null) -> OpenTelemetry.Trace.TracerProviderBuilder
diff --git a/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/.publicApi/netstandard2.0/PublicAPI.Unshipped.txt b/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/.publicApi/netstandard2.0/PublicAPI.Unshipped.txt
index 409287b7be6..6432d93dd94 100644
--- a/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/.publicApi/netstandard2.0/PublicAPI.Unshipped.txt
+++ b/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/.publicApi/netstandard2.0/PublicAPI.Unshipped.txt
@@ -1,4 +1,3 @@
-OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporter
 OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporterOptions
 OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporterOptions.ChannelOptions.get -> System.Collections.Generic.IEnumerable<Grpc.Core.ChannelOption>
 OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporterOptions.ChannelOptions.set -> void
@@ -12,5 +11,4 @@ OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporterOptions.OtlpExporterOpt
 OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporterOptions.ServiceName.get -> string
 OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporterOptions.ServiceName.set -> void
 OpenTelemetry.Trace.OtlpExporterHelperExtensions
-override OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporter.Export(in OpenTelemetry.Batch<System.Diagnostics.Activity> activityBatch) -> OpenTelemetry.ExportResult
 static OpenTelemetry.Trace.OtlpExporterHelperExtensions.AddOtlpExporter(this OpenTelemetry.Trace.TracerProviderBuilder builder, System.Action<OpenTelemetry.Exporter.OpenTelemetryProtocol.OtlpExporterOptions> configure = null) -> OpenTelemetry.Trace.TracerProviderBuilder
diff --git a/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/CHANGELOG.md b/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/CHANGELOG.md
index e96ecb94666..f2ba4282bc2 100644
--- a/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/CHANGELOG.md
+++ b/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/CHANGELOG.md
@@ -5,6 +5,8 @@
 * Code generated from proto files has been marked internal. This includes
   everything under the `OpenTelemetry.Proto` namespace.
   ([#1524](https://github.com/open-telemetry/opentelemetry-dotnet/pull/1524))
+* The `OtlpExporter` class has been made internal.
+  ([#1528](https://github.com/open-telemetry/opentelemetry-dotnet/pull/1528))
 
 ## 0.8.0-beta.1
 
diff --git a/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/OtlpExporter.cs b/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/OtlpExporter.cs
index 68641b26da1..9a6bc7fd4ca 100644
--- a/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/OtlpExporter.cs
+++ b/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/OtlpExporter.cs
@@ -32,7 +32,7 @@ namespace OpenTelemetry.Exporter.OpenTelemetryProtocol
     /// Exporter consuming <see cref="Activity"/> and exporting the data using
     /// the OpenTelemetry protocol (OTLP).
     /// </summary>
-    public class OtlpExporter : BaseExporter<Activity>
+    internal class OtlpExporter : BaseExporter<Activity>
     {
         private readonly OtlpExporterOptions options;
         private readonly Channel channel;