diff --git a/src/tools/get-mapbox-doc-source-tool/GetMapboxDocSourceTool.ts b/src/tools/get-mapbox-doc-source-tool/GetMapboxDocSourceTool.ts
index 8b758a6..03b8872 100644
--- a/src/tools/get-mapbox-doc-source-tool/GetMapboxDocSourceTool.ts
+++ b/src/tools/get-mapbox-doc-source-tool/GetMapboxDocSourceTool.ts
@@ -37,7 +37,12 @@ export class GetMapboxDocSourceTool extends BaseTool<
   ): Promise<CallToolResult> {
     try {
       const response = await this.httpRequest(
-        'https://docs.mapbox.com/llms.txt'
+        'https://docs.mapbox.com/llms.txt',
+        {
+          headers: {
+            Accept: 'text/markdown, text/plain;q=0.9, */*;q=0.8'
+          }
+        }
       );
 
       if (!response.ok) {
diff --git a/test/tools/get-mapbox-doc-source-tool/GetMapboxDocSourceTool.test.ts b/test/tools/get-mapbox-doc-source-tool/GetMapboxDocSourceTool.test.ts
index 6180576..b305358 100644
--- a/test/tools/get-mapbox-doc-source-tool/GetMapboxDocSourceTool.test.ts
+++ b/test/tools/get-mapbox-doc-source-tool/GetMapboxDocSourceTool.test.ts
@@ -43,6 +43,7 @@ This is the Mapbox developer documentation for LLMs.
       'https://docs.mapbox.com/llms.txt',
       {
         headers: {
+          Accept: 'text/markdown, text/plain;q=0.9, */*;q=0.8',
           'User-Agent': 'TestServer/1.0.0 (default, no-tag, abcdef)'
         }
       }