diff --git a/src/Microsoft.AspNetCore.Diagnostics/gruntfile.js b/src/Microsoft.AspNetCore.Diagnostics/_gruntfile.js
similarity index 100%
rename from src/Microsoft.AspNetCore.Diagnostics/gruntfile.js
rename to src/Microsoft.AspNetCore.Diagnostics/_gruntfile.js
diff --git a/src/Microsoft.AspNetCore.Diagnostics/_gruntfile.readme b/src/Microsoft.AspNetCore.Diagnostics/_gruntfile.readme
new file mode 100644
index 0000000000..ee51f091af
--- /dev/null
+++ b/src/Microsoft.AspNetCore.Diagnostics/_gruntfile.readme
@@ -0,0 +1 @@
+If js or css files changes, rename _gruntfile.js to gruntfile.js, _package.json to package.json, and run build.
\ No newline at end of file
diff --git a/src/Microsoft.AspNetCore.Diagnostics/package.json b/src/Microsoft.AspNetCore.Diagnostics/_package.json
similarity index 100%
rename from src/Microsoft.AspNetCore.Diagnostics/package.json
rename to src/Microsoft.AspNetCore.Diagnostics/_package.json