diff --git a/backend/tests/Squidex.Infrastructure.Tests/Json/Objects/JsonValuesSerializationTests.cs b/backend/tests/Squidex.Infrastructure.Tests/Json/Objects/JsonValuesSerializationTests.cs
index 08150c3a8..5eaac3d03 100644
--- a/backend/tests/Squidex.Infrastructure.Tests/Json/Objects/JsonValuesSerializationTests.cs
+++ b/backend/tests/Squidex.Infrastructure.Tests/Json/Objects/JsonValuesSerializationTests.cs
@@ -70,6 +70,16 @@ namespace Squidex.Infrastructure.Json.Objects
             Assert.Equal(value, serialized);
         }
 
+        [Fact]
+        public void Should_serialize_and_deserialize_double_number()
+        {
+            var value = JsonValue.Create(123.5);
+
+            var serialized = value.SerializeAndDeserialize();
+
+            Assert.Equal(value, serialized);
+        }
+
         [Fact]
         public void Should_serialize_and_deserialize_array()
         {