diff --git a/examples/flutter_gallery/lib/gallery/syntax_highlighter.dart b/examples/flutter_gallery/lib/gallery/syntax_highlighter.dart
index 0a7190cbc3..2c7eabb765 100644
--- a/examples/flutter_gallery/lib/gallery/syntax_highlighter.dart
+++ b/examples/flutter_gallery/lib/gallery/syntax_highlighter.dart
@@ -40,7 +40,7 @@ class SyntaxHighlighterStyle {
   final TextStyle constantStyle;
 }
 
-abstract class SyntaxHighlighter {
+abstract class SyntaxHighlighter { // ignore: one_member_abstracts
   TextSpan format(String src);
 }
 
diff --git a/packages/flutter_tools/flutter_analysis_options b/packages/flutter_tools/flutter_analysis_options
index 45da5a57c3..5f63abc3a1 100644
--- a/packages/flutter_tools/flutter_analysis_options
+++ b/packages/flutter_tools/flutter_analysis_options
@@ -40,7 +40,7 @@ linter:
     - library_names
     - library_prefixes
     - non_constant_identifier_names
-    # - one_member_abstracts # https://github.com/dart-lang/linter/issues/203
+    - one_member_abstracts
     - package_api_docs
     - package_names
     - package_prefixed_library_names