diff --git a/platform-includes/configuration/before-send/dart.mdx b/platform-includes/configuration/before-send/dart.mdx
index 1f7a266b6deb7..9b2ae19966764 100644
--- a/platform-includes/configuration/before-send/dart.mdx
+++ b/platform-includes/configuration/before-send/dart.mdx
@@ -1,7 +1,7 @@
 ```dart {3}
 await Sentry.init((options) {
   options.beforeSend = (event, hint) {
-    return event.copyWith(serverName: null); // Don't send server names.
+    return event.copyWith(serverName: ""); // Don't send server names.
   };
 });
 ```
diff --git a/platform-includes/configuration/before-send/flutter.mdx b/platform-includes/configuration/before-send/flutter.mdx
index 6616d2266d57a..7278eb268c601 100644
--- a/platform-includes/configuration/before-send/flutter.mdx
+++ b/platform-includes/configuration/before-send/flutter.mdx
@@ -1,7 +1,7 @@
 ```dart {3}
 await SentryFlutter.init((options) {
   options.beforeSend = (event, hint) {
-    return event.copyWith(serverName: null); // Don't send server names.
+    return event.copyWith(serverName: ""); // Don't send server names.
   };
 });
 ```