diff --git a/test/fix-leaflet.js b/test/fix-leaflet.js
index 87cd156..d9144ac 100644
--- a/test/fix-leaflet.js
+++ b/test/fix-leaflet.js
@@ -1,3 +1,13 @@
 import "global-jsdom/register";
 
-global.navigator.platform = "MacIntel";
+if (!global.navigator.platform) {
+  try {
+    global.navigator.platform = "MacIntel";
+  } catch (error) {
+    Object.defineProperty(global.navigator, "platform", {
+      get() {
+        return "MacIntel";
+      }
+    });
+  }
+}