diff --git a/src/dobjtype.cpp b/src/dobjtype.cpp
index b2622d1db..3e733ce36 100644
--- a/src/dobjtype.cpp
+++ b/src/dobjtype.cpp
@@ -410,6 +410,7 @@ void PClass::InitializeActorInfo ()
 	info->StateList = NULL;
 	info->DamageFactors = NULL;
 	info->PainChances = NULL;
+	info->ColorSets = NULL;
 	m_RuntimeActors.Push (this);
 }