diff --git a/src/Compilers/Core/Portable/CodeAnalysis.csproj b/src/Compilers/Core/Portable/CodeAnalysis.csproj
index 704e2eb8e62a69201c7bbb69f732daf8789042aa..0b84cc348bfaf71b136c3f20e25d23328bb24189 100644
--- a/src/Compilers/Core/Portable/CodeAnalysis.csproj
+++ b/src/Compilers/Core/Portable/CodeAnalysis.csproj
@@ -37,8 +37,8 @@
     <Compile Include="Serialization\IObjectWritable.cs" />
     <Compile Include="Serialization\ObjectBinder.cs" />
     <Compile Include="Serialization\ObjectData.cs" />
-    <Compile Include="Serialization\ObjectReader.cs" />
-    <Compile Include="Serialization\ObjectWriter.cs" />
+    <Compile Include="Serialization\StreamObjectReader.cs" />
+    <Compile Include="Serialization\StreamObjectWriter.cs" />
     <Compile Include="Serialization\TypeKey.cs" />
     <Compile Include="Symbols\IDiscardSymbol.cs" />
     <Compile Include="Syntax\InternalSyntax\GreenNodeExtensions.cs" />
diff --git a/src/Compilers/Core/Portable/Serialization/ObjectReader.cs b/src/Compilers/Core/Portable/Serialization/StreamObjectReader.cs
similarity index 100%
rename from src/Compilers/Core/Portable/Serialization/ObjectReader.cs
rename to src/Compilers/Core/Portable/Serialization/StreamObjectReader.cs
diff --git a/src/Compilers/Core/Portable/Serialization/ObjectWriter.cs b/src/Compilers/Core/Portable/Serialization/StreamObjectWriter.cs
similarity index 100%
rename from src/Compilers/Core/Portable/Serialization/ObjectWriter.cs
rename to src/Compilers/Core/Portable/Serialization/StreamObjectWriter.cs
diff --git a/src/Workspaces/Core/Portable/Workspaces.csproj b/src/Workspaces/Core/Portable/Workspaces.csproj
index 30abbd7fe4a102e814e1c8d96d5d8eea2c1d80c0..7491ea14742f9d96189dacedc9078d66a9e827f5 100644
--- a/src/Workspaces/Core/Portable/Workspaces.csproj
+++ b/src/Workspaces/Core/Portable/Workspaces.csproj
@@ -279,11 +279,11 @@
     <Compile Include="..\..\..\Compilers\Core\Portable\Serialization\ObjectData.cs">
       <Link>Serialization\ObjectData.cs</Link>
     </Compile>
-    <Compile Include="..\..\..\Compilers\Core\Portable\Serialization\ObjectReader.cs">
-      <Link>Serialization\ObjectReader.cs</Link>
+    <Compile Include="..\..\..\Compilers\Core\Portable\Serialization\StreamObjectReader.cs">
+      <Link>Serialization\StreamObjectReader.cs</Link>
     </Compile>
-    <Compile Include="..\..\..\Compilers\Core\Portable\Serialization\ObjectWriter.cs">
-      <Link>Serialization\ObjectWriter.cs</Link>
+    <Compile Include="..\..\..\Compilers\Core\Portable\Serialization\StreamObjectWriter.cs">
+      <Link>Serialization\StreamObjectWriter.cs</Link>
     </Compile>
     <Compile Include="..\..\..\Compilers\Core\Portable\Serialization\TypeKey.cs">
       <Link>Serialization\TypeKey.cs</Link>