diff --git a/SourcetrailExtension/SourcetrailExtension.csproj b/SourcetrailExtension/SourcetrailExtension.csproj
index 9abb7f8..2dd6a1a 100644
--- a/SourcetrailExtension/SourcetrailExtension.csproj
+++ b/SourcetrailExtension/SourcetrailExtension.csproj
@@ -250,6 +250,11 @@
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
       <IncludeInVSIX>true</IncludeInVSIX>
     </Content>
+    <Content Include="..\packages\Newtonsoft.Json.6.0.1\lib\net45\Newtonsoft.Json.dll">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+      <IncludeInVSIX>true</IncludeInVSIX>
+      <VSIXSubPath>.</VSIXSubPath>
+    </Content>
     <Content Include="sourcetrail.ico">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
       <IncludeInVSIX>true</IncludeInVSIX>