diff --git a/packages/quicktype-core/src/language/Dart/DartRenderer.ts b/packages/quicktype-core/src/language/Dart/DartRenderer.ts
index 8a46bd7577..52826b851f 100644
--- a/packages/quicktype-core/src/language/Dart/DartRenderer.ts
+++ b/packages/quicktype-core/src/language/Dart/DartRenderer.ts
@@ -322,7 +322,7 @@ export class DartRenderer extends ConvenienceRenderer {
         if (isNullable && !this._options.requiredProperties) {
             return [
                 list,
-                " == null ? [] : ",
+                " == null ? null : ",
                 "List<",
                 itemType,
                 ">.from(",
diff --git a/test/languages.ts b/test/languages.ts
index 6bcfd43611..94096fd824 100644
--- a/test/languages.ts
+++ b/test/languages.ts
@@ -1621,9 +1621,6 @@ export const DartLanguage: Language = {
         "keyword-unions.schema",
         "ref-remote.schema",
         "uuid.schema",
-        /* Absent optional lists don't round-trip: the generated fromJson/toJson
-           turn them into [], so the output no longer matches the input */
-        "optional-const-ref.schema",
     ],
     skipMiscJSON: true,
     rendererOptions: {},