diff --git a/src/tests/Regressions/coreclr/GitHub_49826/test49826.cs b/src/tests/Regressions/coreclr/GitHub_49826/test49826.cs
index f89706591b5132..ee210fca1c641b 100644
--- a/src/tests/Regressions/coreclr/GitHub_49826/test49826.cs
+++ b/src/tests/Regressions/coreclr/GitHub_49826/test49826.cs
@@ -11,6 +11,10 @@ class Program
     static int Main()
     {
         JsonSerializerOptions options = new JsonSerializerOptions();
+
+        // This is needed to internally call RootBuiltInConvertersAndTypeInfoCreator
+        JsonSerializer.Serialize("a-string");
+
         JsonConverter converter = options.GetConverter(typeof(DateTime));
         Console.WriteLine("Converter type: {0}", converter.GetType());
         return converter != null ? 100 : 1;