diff --git a/packages/flutter_tools/lib/src/artifacts.dart b/packages/flutter_tools/lib/src/artifacts.dart
index ba3703b86ef..efb6e9b4d26 100644
--- a/packages/flutter_tools/lib/src/artifacts.dart
+++ b/packages/flutter_tools/lib/src/artifacts.dart
@@ -578,7 +578,7 @@ class CachedArtifacts implements Artifacts {
       case TargetPlatform.linux_arm64:
       case TargetPlatform.windows_x64:
       case TargetPlatform.windows_arm64:
-        return _getDesktopArtifactPath(artifact, platform, mode);
+        return _getDesktopArtifactPath(artifact, platform!, mode);
       case TargetPlatform.fuchsia_arm64:
       case TargetPlatform.fuchsia_x64:
         return _getFuchsiaArtifactPath(artifact, platform!, mode!);
@@ -594,18 +594,18 @@ class CachedArtifacts implements Artifacts {
     return _fileSystem.path.basename(_getEngineArtifactsPath(platform, mode)!);
   }
 
-  String _getDesktopArtifactPath(Artifact artifact, TargetPlatform? platform, BuildMode? mode) {
+  String _getDesktopArtifactPath(Artifact artifact, TargetPlatform platform, BuildMode? mode) {
     // When platform is null, a generic host platform artifact is being requested
     // and not the gen_snapshot for darwin as a target platform.
-    if (platform != null && artifact == Artifact.genSnapshot) {
+    if (artifact == Artifact.genSnapshot) {
       final String engineDir = _getEngineArtifactsPath(platform, mode)!;
       return _fileSystem.path.join(engineDir, _artifactToFileName(artifact, _platform));
     }
-    if (platform != null && artifact == Artifact.flutterMacOSFramework) {
+    if (artifact == Artifact.flutterMacOSFramework) {
       final String engineDir = _getEngineArtifactsPath(platform, mode)!;
       return _getMacOSEngineArtifactPath(engineDir, _fileSystem, _platform);
     }
-    return _getHostArtifactPath(artifact, platform ?? _currentHostPlatform(_platform, _operatingSystemUtils), mode);
+    return _getHostArtifactPath(artifact, platform, mode);
   }
 
   String _getAndroidArtifactPath(Artifact artifact, TargetPlatform platform, BuildMode mode) {
diff --git a/packages/flutter_tools/lib/src/base/build.dart b/packages/flutter_tools/lib/src/base/build.dart
index 60be3c0e1d7..09e57962c62 100644
--- a/packages/flutter_tools/lib/src/base/build.dart
+++ b/packages/flutter_tools/lib/src/base/build.dart
@@ -16,7 +16,7 @@ import 'process.dart';
 class SnapshotType {
   SnapshotType(this.platform, this.mode);
 
-  final TargetPlatform? platform;
+  final TargetPlatform platform;
   final BuildMode mode;
 
   @override
diff --git a/packages/flutter_tools/test/general.shard/base/build_test.dart b/packages/flutter_tools/test/general.shard/base/build_test.dart
index 20b85f4f0eb..f0509e7d027 100644
--- a/packages/flutter_tools/test/general.shard/base/build_test.dart
+++ b/packages/flutter_tools/test/general.shard/base/build_test.dart
@@ -49,12 +49,6 @@ const List<String> kDefaultClang = <String>[
 ];
 
 void main() {
-  group('SnapshotType', () {
-    test('does not throw, if target platform is null', () {
-      expect(() => SnapshotType(null, BuildMode.release), returnsNormally);
-    });
-  });
-
   group('GenSnapshot', () {
     late GenSnapshot genSnapshot;
     late Artifacts artifacts;