diff --git a/packages/flutter_tools/lib/src/android/gradle.dart b/packages/flutter_tools/lib/src/android/gradle.dart
index eb647f27ac0..9dcb8f0df89 100644
--- a/packages/flutter_tools/lib/src/android/gradle.dart
+++ b/packages/flutter_tools/lib/src/android/gradle.dart
@@ -629,14 +629,9 @@ class AndroidGradleBuilder implements AndroidBuilder {
       'A summary of your ${kind.toUpperCase()} analysis can be found at: ${outputFile.path}',
     );
 
-    // DevTools expects a file path relative to the .flutter-devtools/ dir.
-    final String relativeAppSizePath = outputFile.path
-        .split('.flutter-devtools/')
-        .last
-        .trim();
     _logger.printStatus(
         '\nTo analyze your app size in Dart DevTools, run the following command:\n'
-            'dart devtools --appSizeBase=$relativeAppSizePath'
+        'dart devtools --appSizeBase=${outputFile.path}'
     );
   }
 
diff --git a/packages/flutter_tools/lib/src/commands/build_ios.dart b/packages/flutter_tools/lib/src/commands/build_ios.dart
index 3401776c529..9b10fa9316b 100644
--- a/packages/flutter_tools/lib/src/commands/build_ios.dart
+++ b/packages/flutter_tools/lib/src/commands/build_ios.dart
@@ -773,11 +773,9 @@ abstract class _BuildIOSSubCommand extends BuildSubCommand {
         'A summary of your iOS bundle analysis can be found at: ${outputFile.path}',
       );
 
-      // DevTools expects a file path relative to the .flutter-devtools/ dir.
-      final String relativeAppSizePath = outputFile.path.split('.flutter-devtools/').last.trim();
       globals.printStatus(
         '\nTo analyze your app size in Dart DevTools, run the following command:\n'
-        'dart devtools --appSizeBase=$relativeAppSizePath'
+        'dart devtools --appSizeBase=${outputFile.path}'
       );
     }
 
diff --git a/packages/flutter_tools/lib/src/linux/build_linux.dart b/packages/flutter_tools/lib/src/linux/build_linux.dart
index 8f9f1141fb8..882586b217d 100644
--- a/packages/flutter_tools/lib/src/linux/build_linux.dart
+++ b/packages/flutter_tools/lib/src/linux/build_linux.dart
@@ -124,11 +124,9 @@ Future<void> buildLinux(
       'A summary of your Linux bundle analysis can be found at: ${outputFile.path}',
     );
 
-    // DevTools expects a file path relative to the .flutter-devtools/ dir.
-    final String relativeAppSizePath = outputFile.path.split('.flutter-devtools/').last.trim();
     logger.printStatus(
       '\nTo analyze your app size in Dart DevTools, run the following command:\n'
-      'dart devtools --appSizeBase=$relativeAppSizePath'
+      'dart devtools --appSizeBase=${outputFile.path}'
     );
   }
 }
diff --git a/packages/flutter_tools/lib/src/macos/build_macos.dart b/packages/flutter_tools/lib/src/macos/build_macos.dart
index bbda3276f62..2e9ffbed470 100644
--- a/packages/flutter_tools/lib/src/macos/build_macos.dart
+++ b/packages/flutter_tools/lib/src/macos/build_macos.dart
@@ -303,11 +303,9 @@ Future<void> _writeCodeSizeAnalysis(BuildInfo buildInfo, SizeAnalyzer? sizeAnaly
     'A summary of your macOS bundle analysis can be found at: ${outputFile.path}',
   );
 
-  // DevTools expects a file path relative to the .flutter-devtools/ dir.
-  final String relativeAppSizePath = outputFile.path.split('.flutter-devtools/').last.trim();
   globals.printStatus(
     '\nTo analyze your app size in Dart DevTools, run the following command:\n'
-    'dart devtools --appSizeBase=$relativeAppSizePath'
+    'dart devtools --appSizeBase=${outputFile.path}'
   );
 }
 
diff --git a/packages/flutter_tools/lib/src/windows/build_windows.dart b/packages/flutter_tools/lib/src/windows/build_windows.dart
index c614c64b4e9..e17a6faefba 100644
--- a/packages/flutter_tools/lib/src/windows/build_windows.dart
+++ b/packages/flutter_tools/lib/src/windows/build_windows.dart
@@ -157,11 +157,9 @@ Future<void> buildWindows(
       'A summary of your Windows bundle analysis can be found at: ${outputFile.path}',
     );
 
-    // DevTools expects a file path relative to the .flutter-devtools/ dir.
-    final String relativeAppSizePath = outputFile.path.split('.flutter-devtools/').last.trim();
     globals.printStatus(
       '\nTo analyze your app size in Dart DevTools, run the following command:\n'
-      'dart devtools --appSizeBase=$relativeAppSizePath'
+      'dart devtools --appSizeBase=${outputFile.path}'
     );
   }
 }
diff --git a/packages/flutter_tools/test/integration.shard/analyze_size_test.dart b/packages/flutter_tools/test/integration.shard/analyze_size_test.dart
index f7a12ec4a84..951afa8729e 100644
--- a/packages/flutter_tools/test/integration.shard/analyze_size_test.dart
+++ b/packages/flutter_tools/test/integration.shard/analyze_size_test.dart
@@ -46,8 +46,7 @@ void main() {
         .split('\n')
         .firstWhere((String line) => line.contains(runDevToolsMessage));
     final String commandArguments = devToolsCommand.split(runDevToolsMessage).last.trim();
-    final String relativeAppSizePath = outputFilePath.split('.flutter-devtools/').last.trim();
-    expect(commandArguments.contains('--appSizeBase=$relativeAppSizePath'), isTrue);
+    expect(commandArguments.contains('--appSizeBase=$outputFilePath'), isTrue);
   });
 
   testWithoutContext('--analyze-size flag produces expected output on hello_world for iOS', () async {
@@ -80,9 +79,8 @@ void main() {
         .split('\n')
         .firstWhere((String line) => line.contains(runDevToolsMessage));
     final String commandArguments = devToolsCommand.split(runDevToolsMessage).last.trim();
-    final String relativeAppSizePath = outputFilePath.split('.flutter-devtools/').last.trim();
 
-    expect(commandArguments.contains('--appSizeBase=$relativeAppSizePath'), isTrue);
+    expect(commandArguments.contains('--appSizeBase=$outputFilePath'), isTrue);
     expect(codeSizeDir.existsSync(), true);
     tempDir.deleteSync(recursive: true);
   }, skip: !platform.isMacOS); // [intended] iOS can only be built on macos.
@@ -132,9 +130,8 @@ void main() {
         .split('\n')
         .firstWhere((String line) => line.contains(runDevToolsMessage));
     final String commandArguments = devToolsCommand.split(runDevToolsMessage).last.trim();
-    final String relativeAppSizePath = outputFilePath.split('.flutter-devtools/').last.trim();
 
-    expect(commandArguments.contains('--appSizeBase=$relativeAppSizePath'), isTrue);
+    expect(commandArguments.contains('--appSizeBase=$outputFilePath'), isTrue);
     expect(codeSizeDir.existsSync(), true);
     tempDir.deleteSync(recursive: true);
   }, skip: !platform.isMacOS); // [intended] this is a macos only test.