diff --git a/source/lib/compiler.ts b/source/lib/compiler.ts
index 531f3a4..1697084 100644
--- a/source/lib/compiler.ts
+++ b/source/lib/compiler.ts
@@ -44,6 +44,7 @@ const expectErrorDiagnosticCodesToIgnore = new Set<DiagnosticCode>([
 	DiagnosticCode.MemberMustHaveOverrideModifier,
 	DiagnosticCode.StringLiteralTypeIsNotAssignableToUnionTypeWithSuggestion,
 	DiagnosticCode.ObjectLiteralMayOnlySpecifyKnownProperties,
+	DiagnosticCode.ObjectLiteralMayOnlySpecifyKnownProperties2,
 ]);
 
 type IgnoreDiagnosticResult = 'preserve' | 'ignore' | Location;
diff --git a/source/lib/interfaces.ts b/source/lib/interfaces.ts
index 34018ab..fbebc6d 100644
--- a/source/lib/interfaces.ts
+++ b/source/lib/interfaces.ts
@@ -40,6 +40,7 @@ export enum DiagnosticCode {
 	OnlyVoidFunctionIsNewCallable = 2350,
 	ExpressionNotConstructable = 2351,
 	ObjectLiteralMayOnlySpecifyKnownProperties = 2353,
+	ObjectLiteralMayOnlySpecifyKnownProperties2 = 2561,
 	TypeNotAssignableWithExactOptionalPropertyTypes = 2375,
 	TypeNotAssignableToParameterWithExactOptionalPropertyTypes = 2379,
 	TypeNotAssignableTypeOfTargetWithExactOptionalPropertyTypes = 2412,