diff --git a/src/Workspaces/Core/Portable/Shared/Extensions/SyntaxGeneratorExtensions_CreateEqualsMethod.cs b/src/Workspaces/Core/Portable/Shared/Extensions/SyntaxGeneratorExtensions_CreateEqualsMethod.cs
index 1d34bafa0633b644b70ebe5218ca11d23e43ee48..f577b7184536d1cd858fa679d9798ed164e3fea6 100644
--- a/src/Workspaces/Core/Portable/Shared/Extensions/SyntaxGeneratorExtensions_CreateEqualsMethod.cs
+++ b/src/Workspaces/Core/Portable/Shared/Extensions/SyntaxGeneratorExtensions_CreateEqualsMethod.cs
@@ -48,7 +48,7 @@ public static IMethodSymbol CreateEqualsMethod(this Compilation compilation, Imm
                 explicitInterfaceImplementations: default,
                 name: EqualsName,
                 typeParameters: default,
-                parameters: ImmutableArray.Create(CodeGenerationSymbolFactory.CreateParameterSymbol(compilation.GetSpecialType(SpecialType.System_Object), ObjName)),
+                parameters: ImmutableArray.Create(CodeGenerationSymbolFactory.CreateParameterSymbol(compilation.GetSpecialType(SpecialType.System_Object).WithNullability(NullableAnnotation.Annotated), ObjName)),
                 statements: statements);
         }