ensure default value for report timings (#52978)
diff --git a/packages/flutter_tools/lib/src/aot.dart b/packages/flutter_tools/lib/src/aot.dart
index 788cade..4c29daa 100644
--- a/packages/flutter_tools/lib/src/aot.dart
+++ b/packages/flutter_tools/lib/src/aot.dart
@@ -30,7 +30,7 @@
bool bitcode = kBitcodeEnabledDefault,
bool quiet = true,
Iterable<DarwinArch> iosBuildArchs = defaultIOSArchs,
- bool reportTimings,
+ bool reportTimings = false,
}) async {
if (platform == null) {
throwToolExit('No AOT build platform specified');