diff --git a/packages/flutter_tools/lib/src/base/build.dart b/packages/flutter_tools/lib/src/base/build.dart
index fecf5d310f77..674bf4eb9355 100644
--- a/packages/flutter_tools/lib/src/base/build.dart
+++ b/packages/flutter_tools/lib/src/base/build.dart
@@ -64,10 +64,12 @@ class GenSnapshot {
 
     String snapshotterPath = getSnapshotterPath(snapshotType);
 
-    // iOS has a separate gen_snapshot for armv7 and arm64 in the same,
-    // directory. So we need to select the right one.
-    if (snapshotType.platform == TargetPlatform.ios) {
-      snapshotterPath += '_${getNameForDarwinArch(darwinArch!)}';
+    // iOS and macOS have separate gen_snapshot binaries for each target
+    // architecture (iOS: armv7, arm64; macOS: x86_64, arm64). Select the right
+    // one for the target architecture in question.
+    if (snapshotType.platform == TargetPlatform.ios ||
+        snapshotType.platform == TargetPlatform.darwin) {
+      snapshotterPath += '_${getDartNameForDarwinArch(darwinArch!)}';
     }
 
     return _processUtils.stream(
diff --git a/packages/flutter_tools/lib/src/build_info.dart b/packages/flutter_tools/lib/src/build_info.dart
index 119e3929876a..026078467095 100644
--- a/packages/flutter_tools/lib/src/build_info.dart
+++ b/packages/flutter_tools/lib/src/build_info.dart
@@ -570,6 +570,31 @@ List<DarwinArch> defaultIOSArchsForEnvironment(
   ];
 }
 
+// Returns the Dart SDK's name for the specified target architecture.
+//
+// When building for Darwin platforms, the tool invokes architecture-specific
+// variants of `gen_snapshot`, one for each target architecture. The output
+// instructions are then built into architecture-specific binaries, which are
+// merged into a universal binary using the `lipo` tool.
+String getDartNameForDarwinArch(DarwinArch arch) {
+  switch (arch) {
+    case DarwinArch.armv7:
+      return 'armv7';
+    case DarwinArch.arm64:
+      return 'arm64';
+    case DarwinArch.x86_64:
+      return 'x64';
+  }
+}
+
+// Returns Apple's name for the specified target architecture.
+//
+// When invoking Apple tools such as `xcodebuild` or `lipo`, the tool often
+// passes one or more target architectures as paramters. The names returned by
+// this function reflect Apple's name for the specified architecture.
+//
+// For consistency with developer expectations, Flutter outputs also use these
+// architecture names in its build products for Darwin target platforms.
 String getNameForDarwinArch(DarwinArch arch) {
   switch (arch) {
     case DarwinArch.armv7:
diff --git a/packages/flutter_tools/test/general.shard/build_info_test.dart b/packages/flutter_tools/test/general.shard/build_info_test.dart
index ebfe7fbaf30b..96f3976a4291 100644
--- a/packages/flutter_tools/test/general.shard/build_info_test.dart
+++ b/packages/flutter_tools/test/general.shard/build_info_test.dart
@@ -80,6 +80,18 @@ void main() {
     });
   });
 
+  testWithoutContext('getDartNameForDarwinArch returns name used in Dart SDK', () {
+    expect(getDartNameForDarwinArch(DarwinArch.armv7),  'armv7');
+    expect(getDartNameForDarwinArch(DarwinArch.arm64),  'arm64');
+    expect(getDartNameForDarwinArch(DarwinArch.x86_64), 'x64');
+  });
+
+  testWithoutContext('getNameForDarwinArch returns Apple names', () {
+    expect(getNameForDarwinArch(DarwinArch.armv7),  'armv7');
+    expect(getNameForDarwinArch(DarwinArch.arm64),  'arm64');
+    expect(getNameForDarwinArch(DarwinArch.x86_64), 'x86_64');
+  });
+
   testWithoutContext('getNameForTargetPlatform on Darwin arches', () {
     expect(getNameForTargetPlatform(TargetPlatform.ios, darwinArch: DarwinArch.arm64), 'ios-arm64');
     expect(getNameForTargetPlatform(TargetPlatform.ios, darwinArch: DarwinArch.armv7), 'ios-armv7');
diff --git a/packages/flutter_tools/test/general.shard/build_system/targets/macos_test.dart b/packages/flutter_tools/test/general.shard/build_system/targets/macos_test.dart
index 6dd648007262..ff8463760a4c 100644
--- a/packages/flutter_tools/test/general.shard/build_system/targets/macos_test.dart
+++ b/packages/flutter_tools/test/general.shard/build_system/targets/macos_test.dart
@@ -384,7 +384,7 @@ void main() {
 
     processManager.addCommands(<FakeCommand>[
       FakeCommand(command: <String>[
-        'Artifact.genSnapshot.TargetPlatform.darwin.release',
+        'Artifact.genSnapshot.TargetPlatform.darwin.release_arm64',
         '--deterministic',
         '--snapshot_kind=app-aot-assembly',
         '--assembly=${environment.buildDir.childFile('arm64/snapshot_assembly.S').path}',
@@ -392,7 +392,7 @@ void main() {
         environment.buildDir.childFile('app.dill').path
       ]),
       FakeCommand(command: <String>[
-        'Artifact.genSnapshot.TargetPlatform.darwin.release',
+        'Artifact.genSnapshot.TargetPlatform.darwin.release_x64',
         '--deterministic',
         '--snapshot_kind=app-aot-assembly',
         '--assembly=${environment.buildDir.childFile('x86_64/snapshot_assembly.S').path}',