diff --git a/src/dobject.cpp b/src/dobject.cpp
index 6644c90b3..64236bcba 100644
--- a/src/dobject.cpp
+++ b/src/dobject.cpp
@@ -584,13 +584,20 @@ void DObject::SerializeUserVars(FSerializer &arc)
 
 void DObject::Serialize(FSerializer &arc)
 {
-	int fresh = ObjectFlags & OF_JustSpawned;
-	int freshdef = 0;
-	arc("justspawned", fresh, freshdef);
-	if (arc.isReading())
+	const auto SerializeFlag = [&](const char *const name, const EObjectFlags flag)
 	{
-		ObjectFlags |= fresh;
-	}
+		int value = ObjectFlags & flag;
+		int defaultvalue = 0;
+		arc(name, value, defaultvalue);
+		if (arc.isReading())
+		{
+			ObjectFlags |= value;
+		}
+	};
+
+	SerializeFlag("justspawned", OF_JustSpawned);
+	SerializeFlag("spawned", OF_Spawned);
+
 	ObjectFlags |= OF_SerialSuccess;
 }