diff --git a/baselines/dom.generated.d.ts b/baselines/dom.generated.d.ts
index 2f79abdc8..701b2dcee 100644
--- a/baselines/dom.generated.d.ts
+++ b/baselines/dom.generated.d.ts
@@ -16239,7 +16239,7 @@ interface Navigator extends NavigatorAutomationInformation, NavigatorBadge, Navi
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/canShare)
      */
-    canShare(data?: ShareData): boolean;
+    canShare?(data?: ShareData): boolean;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/getGamepads) */
     getGamepads(): (Gamepad | null)[];
     /**
@@ -16261,7 +16261,7 @@ interface Navigator extends NavigatorAutomationInformation, NavigatorBadge, Navi
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/share)
      */
-    share(data?: ShareData): Promise<void>;
+    share?(data?: ShareData): Promise<void>;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/vibrate) */
     vibrate(pattern: VibratePattern): boolean;
 }
diff --git a/inputfiles/overridingTypes.jsonc b/inputfiles/overridingTypes.jsonc
index 8b3c591b7..7d6e2b031 100644
--- a/inputfiles/overridingTypes.jsonc
+++ b/inputfiles/overridingTypes.jsonc
@@ -3315,6 +3315,24 @@
                         }
                     }
                 }
+            },
+            "Navigator": {
+                "methods": {
+                    "method": {
+                        "share": {
+                            "name": "share",
+                            "overrideSignatures": [
+                                "share?(data?: ShareData): Promise<void>"
+                            ]
+                        },
+                        "canShare": {
+                            "name": "canShare",
+                            "overrideSignatures": [
+                                "canShare?(data?: ShareData): boolean"
+                            ]
+                        }
+                    }
+                }
             }
         }
     },