diff --git a/Flax.flaxproj b/Flax.flaxproj
index 383d9e14e..46f3f93e4 100644
--- a/Flax.flaxproj
+++ b/Flax.flaxproj
@@ -4,7 +4,7 @@
     "Major": 1,
     "Minor": 9,
     "Revision": 0,
-    "Build": 6600
+    "Build": 6601
   },
   "Company": "Flax",
   "Copyright": "Copyright (c) 2012-2024 Wojciech Figat. All rights reserved.",
diff --git a/Source/Engine/Level/Actor.cpp b/Source/Engine/Level/Actor.cpp
index 2615f09fa..2e1870a57 100644
--- a/Source/Engine/Level/Actor.cpp
+++ b/Source/Engine/Level/Actor.cpp
@@ -1062,9 +1062,12 @@ void Actor::Deserialize(DeserializeStream& stream, ISerializeModifier* modifier)
     // StaticFlags update - added StaticFlags::Navigation
     // [Deprecated on 17.05.2020, expires on 17.05.2021]
     if (modifier->EngineBuild < 6178 && (int32)_staticFlags == (1 + 2 + 4))
-    {
         _staticFlags |= StaticFlags::Navigation;
-    }
+
+    // StaticFlags update - added StaticFlags::Shadow
+    // [Deprecated on 17.05.2020, expires on 17.05.2021]
+    if (modifier->EngineBuild < 6601 && (int32)_staticFlags == (1 + 2 + 4 + 8))
+        _staticFlags |= StaticFlags::Shadow;
 
     const auto tag = stream.FindMember("Tag");
     if (tag != stream.MemberEnd())
diff --git a/Source/Engine/Level/Types.h b/Source/Engine/Level/Types.h
index 920cf65ca..b6ca23526 100644
--- a/Source/Engine/Level/Types.h
+++ b/Source/Engine/Level/Types.h
@@ -97,10 +97,15 @@ API_ENUM(Attributes="Flags") enum class StaticFlags
     /// </summary>
     Navigation = 1 << 3,
 
+    /// <summary>
+    /// Object is considered to have static shadowing (casting and receiving).
+    /// </summary>
+    Shadow = 1 << 4,
+
     /// <summary>
     /// Object is fully static in the scene.
     /// </summary>
-    FullyStatic = Transform | ReflectionProbe | Lightmap | Navigation,
+    FullyStatic = ReflectionProbe | Lightmap | Transform | Navigation | Shadow,
 
     /// <summary>
     /// Maximum value of the enum (force to int).