diff --git a/api/AbortSignal.json b/api/AbortSignal.json
index 3a4ed961729d1b..b070723d4ac9aa 100644
--- a/api/AbortSignal.json
+++ b/api/AbortSignal.json
@@ -168,7 +168,10 @@
         "__compat": {
           "description": "<code>abort</code> event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AbortSignal/abort_event",
-          "spec_url": "https://dom.spec.whatwg.org/#eventdef-abortsignal-abort",
+          "spec_url": [
+            "https://dom.spec.whatwg.org/#eventdef-abortsignal-abort",
+            "https://dom.spec.whatwg.org/#abortsignal-onabort"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -275,61 +278,6 @@
           }
         }
       },
-      "onabort": {
-        "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/AbortSignal/onabort",
-          "spec_url": "https://dom.spec.whatwg.org/#abortsignal-onabort",
-          "support": {
-            "chrome": {
-              "version_added": "66"
-            },
-            "chrome_android": {
-              "version_added": "66"
-            },
-            "deno": {
-              "version_added": "1.0"
-            },
-            "edge": {
-              "version_added": "16"
-            },
-            "firefox": {
-              "version_added": "57"
-            },
-            "firefox_android": {
-              "version_added": "57"
-            },
-            "ie": {
-              "version_added": false
-            },
-            "nodejs": {
-              "version_added": "15.0.0"
-            },
-            "opera": {
-              "version_added": "53"
-            },
-            "opera_android": {
-              "version_added": "47"
-            },
-            "safari": {
-              "version_added": "11.1"
-            },
-            "safari_ios": {
-              "version_added": "11.3"
-            },
-            "samsunginternet_android": {
-              "version_added": "9.0"
-            },
-            "webview_android": {
-              "version_added": "66"
-            }
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": true,
-            "deprecated": false
-          }
-        }
-      },
       "reason": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AbortSignal/reason",