diff --git a/docs/index.fsx b/docs/index.fsx
index bc11617a7..1bf696dc9 100644
--- a/docs/index.fsx
+++ b/docs/index.fsx
@@ -100,7 +100,7 @@ If the interactive extension does not work, please file an issue and we will try
 
 A possible fix for this is the inclusion of Dotnet.Interactive preview package sources. To use these, add the following lines before referencning Plotly.NET.Interactive:
 
-```fsharp
+```
 #i "nuget:https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet5/nuget/v3/index.json"
 #i "nuget:https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-tools/nuget/v3/index.json"
 ```