diff --git a/Src/Newtonsoft.Json/Newtonsoft.Json.Metro.csproj b/Src/Newtonsoft.Json/Newtonsoft.Json.Metro.csproj
index e84b4a0e..56804dd4 100644
--- a/Src/Newtonsoft.Json/Newtonsoft.Json.Metro.csproj
+++ b/Src/Newtonsoft.Json/Newtonsoft.Json.Metro.csproj
@@ -146,6 +146,7 @@
     <Compile Include="JsonConverter.cs" />
     <Compile Include="JsonConverterAttribute.cs" />
     <Compile Include="JsonConverterCollection.cs" />
+    <Compile Include="JsonException.cs" />
     <Compile Include="JsonIgnoreAttribute.cs" />
     <Compile Include="JsonObjectAttribute.cs" />
     <Compile Include="JsonPosition.cs" />
diff --git a/Src/Newtonsoft.Json/Newtonsoft.Json.Portable.csproj b/Src/Newtonsoft.Json/Newtonsoft.Json.Portable.csproj
index 48798d17..89a33cc9 100644
--- a/Src/Newtonsoft.Json/Newtonsoft.Json.Portable.csproj
+++ b/Src/Newtonsoft.Json/Newtonsoft.Json.Portable.csproj
@@ -77,6 +77,7 @@
     <Compile Include="JsonConverter.cs" />
     <Compile Include="JsonConverterAttribute.cs" />
     <Compile Include="JsonConverterCollection.cs" />
+    <Compile Include="JsonException.cs" />
     <Compile Include="JsonIgnoreAttribute.cs" />
     <Compile Include="JsonObjectAttribute.cs" />
     <Compile Include="JsonPosition.cs" />