diff --git a/dio/lib/src/dio_exception.dart b/dio/lib/src/dio_exception.dart
index c7c7c9a5f..b39fff05c 100644
--- a/dio/lib/src/dio_exception.dart
+++ b/dio/lib/src/dio_exception.dart
@@ -163,7 +163,7 @@ class DioException implements Exception {
   }) =>
       DioException(
         type: DioExceptionType.connectionError,
-        message: 'The connection errored: $reason. '
+        message: 'The connection errored: $reason '
             'This indicates an error which most likely cannot be solved by the library.',
         requestOptions: requestOptions,
         response: null,