diff --git a/pkgs/dash_analytics/lib/src/config_handler.dart b/pkgs/dash_analytics/lib/src/config_handler.dart
index 83ecd7d8c2..08033d85c0 100644
--- a/pkgs/dash_analytics/lib/src/config_handler.dart
+++ b/pkgs/dash_analytics/lib/src/config_handler.dart
@@ -19,9 +19,9 @@ const String telemetryFlagPattern = r'^reporting=([0|1]) *$';
 /// from the configuration file
 ///
 /// Example:
-/// flutter-tools=2022-10-26,1
+/// flutter_tools=2022-10-26,1
 const String toolPattern =
-    r'^([A-Za-z0-9]+-*[A-Za-z0-9]*)=([0-9]{4}-[0-9]{2}-[0-9]{2}),([0-9]+)$';
+    r'^([A-Za-z0-9]+[A-Za-z0-9_]*)=([0-9]{4}-[0-9]{2}-[0-9]{2}),([0-9]+)$';
 
 class ConfigHandler {
   /// Regex pattern implementation for matching a line in the config file
diff --git a/pkgs/dash_analytics/test/dash_analytics_test.dart b/pkgs/dash_analytics/test/dash_analytics_test.dart
index f409b975c9..c1e222ac75 100644
--- a/pkgs/dash_analytics/test/dash_analytics_test.dart
+++ b/pkgs/dash_analytics/test/dash_analytics_test.dart
@@ -30,7 +30,7 @@ void main() {
   late UserProperty userProperty;
 
   const String homeDirName = 'home';
-  const String initialToolName = 'initialTool';
+  const String initialToolName = 'initial_tool';
   const String secondTool = 'newTool';
   const String measurementId = 'measurementId';
   const String apiSecret = 'apiSecret';
@@ -104,6 +104,10 @@ void main() {
             'There should only be 4 files in the $kDartToolDirectoryName directory');
     expect(analytics.shouldShowMessage, true,
         reason: 'For the first run, analytics should default to being enabled');
+    expect(configFile.readAsLinesSync().length,
+        kConfigString.split('\n').length + 1,
+        reason: 'The number of lines should equal lines in constant value + 1 '
+            'for the initialized tool');
   });
 
   test('New tool is successfully added to config file', () {