diff --git a/packages/network_info_plus/network_info_plus/lib/src/network_info_plus_linux.dart b/packages/network_info_plus/network_info_plus/lib/src/network_info_plus_linux.dart
index 528ae8c7d0..b4bf1211c0 100644
--- a/packages/network_info_plus/network_info_plus/lib/src/network_info_plus_linux.dart
+++ b/packages/network_info_plus/network_info_plus/lib/src/network_info_plus_linux.dart
@@ -91,7 +91,7 @@ class NetworkInfoPlusLinuxPlugin extends NetworkInfoPlatform {
   }
 
   String? _getIpAddress(List<Map<String, dynamic>>? data) {
-    return data?.firstOrNull?['address'] as String;
+    return data?.firstOrNull?['address'] as String?;
   }
 
   String? _getSubnetMask(List<Map<String, dynamic>>? data) {