diff --git a/src/Components/WebAssembly/Sdk/src/targets/BlazorWasm.web.config b/src/Components/WebAssembly/Sdk/src/targets/BlazorWasm.web.config
index c16575f7519c..c461dc0b3d06 100644
--- a/src/Components/WebAssembly/Sdk/src/targets/BlazorWasm.web.config
+++ b/src/Components/WebAssembly/Sdk/src/targets/BlazorWasm.web.config
@@ -9,6 +9,7 @@
       <remove fileExtension=".wasm" />
       <remove fileExtension=".woff" />
       <remove fileExtension=".woff2" />
+      <mimeMap fileExtension=".blat" mimeType="application/octet-stream" />
       <mimeMap fileExtension=".dll" mimeType="application/octet-stream" />
       <mimeMap fileExtension=".dat" mimeType="application/octet-stream" />
       <mimeMap fileExtension=".json" mimeType="application/json" />