diff --git a/http/headers/accept-charset.json b/http/headers/accept-charset.json
index bdd1f27a9663bf..c53ce8a9344bbd 100644
--- a/http/headers/accept-charset.json
+++ b/http/headers/accept-charset.json
@@ -1,53 +1,59 @@
 {
-  "Accept-Charset": {
-    "Basic support": {
-      "Android": {
-        "support": true
-      },
-      "Chrome": {
-        "support": true
-      },
-      "Chrome for Android": {
-        "support": true
-      },
-      "Edge": {
-        "support": true
-      },
-      "Edge Mobile": {
-        "support": true
-      },
-      "Firefox": {
-        "support": true
-      },
-      "Firefox for Android": {
-        "support": true
-      },
-      "Internet Explorer": {
-        "support": true
-      },
-      "IE Mobile": {
-        "support": true
-      },
-      "Opera": {
-        "support": true
-      },
-      "Opera Mobile": {
-        "support": true
-      },
-      "Safari": {
-        "support": true
-      },
-      "Safari Mobile": {
-        "support": true
-      },
-      "Servo": {
-        "support": true
-      },
-      "status": {
-        "experimental": false,
-        "standardized": true,
-        "stable": true,
-        "obsolete": false
+  "http": {
+    "headers": {
+      "Accept-Charset": {
+        "compat": {
+          "Basic support": {
+        "Android": {
+          "support": true
+        },
+        "Chrome": {
+          "support": true
+        },
+        "Chrome for Android": {
+          "support": true
+        },
+        "Edge": {
+          "support": true
+        },
+        "Edge Mobile": {
+          "support": true
+        },
+        "Firefox": {
+          "support": true
+        },
+        "Firefox for Android": {
+          "support": true
+        },
+        "Internet Explorer": {
+          "support": true
+        },
+        "IE Mobile": {
+          "support": true
+        },
+        "Opera": {
+          "support": true
+        },
+        "Opera Mobile": {
+          "support": true
+        },
+        "Safari": {
+          "support": true
+        },
+        "Safari Mobile": {
+          "support": true
+        },
+        "Servo": {
+          "support": true
+        },
+        "status": {
+          "experimental": false,
+          "standardized": true,
+          "stable": true,
+          "obsolete": false
+        }
+      }
+        }
       }
     }
   }