diff --git a/analysis_options.yaml b/analysis_options.yaml
index cb0649bfcdf..135153f5f0d 100644
--- a/analysis_options.yaml
+++ b/analysis_options.yaml
@@ -122,7 +122,7 @@ linter:
     # - lines_longer_than_80_chars # not required by flutter style
     - literal_only_boolean_expressions
     # - matching_super_parameters # blocked on https://github.com/dart-lang/language/issues/2509
-    # - missing_code_block_language_in_doc_comment # not yet tested
+    - missing_code_block_language_in_doc_comment
     - missing_whitespace_between_adjacent_strings
     - no_adjacent_strings_in_list
     - no_default_cases
diff --git a/dartdoc_options.yaml b/dartdoc_options.yaml
index fc6bafd1bd7..35b37f5184d 100644
--- a/dartdoc_options.yaml
+++ b/dartdoc_options.yaml
@@ -40,4 +40,3 @@ dartdoc:
     ## Ignores that are elevated to errors:
     # - type-as-html # broken, https://github.com/dart-lang/dartdoc/issues/3545
     - missing-constant-constructor
-    - missing-code-block-language