diff --git a/LEGO1/omni/include/mxdsaction.h b/LEGO1/omni/include/mxdsaction.h
index 72addf68..532035b5 100644
--- a/LEGO1/omni/include/mxdsaction.h
+++ b/LEGO1/omni/include/mxdsaction.h
@@ -28,6 +28,7 @@ class MxDSAction : public MxDSObject {
 	MxDSAction();
 	~MxDSAction() override;
 
+	MxDSAction(MxDSAction& p_dsAction);
 	void CopyFrom(MxDSAction& p_dsAction);
 	MxDSAction& operator=(MxDSAction& p_dsAction);
 
diff --git a/LEGO1/omni/src/action/mxdsaction.cpp b/LEGO1/omni/src/action/mxdsaction.cpp
index d1e20530..c5affed1 100644
--- a/LEGO1/omni/src/action/mxdsaction.cpp
+++ b/LEGO1/omni/src/action/mxdsaction.cpp
@@ -112,6 +112,12 @@ void MxDSAction::CopyFrom(MxDSAction& p_dsAction)
 	this->m_unk0x90 = p_dsAction.m_unk0x90;
 }
 
+// FUNCTION: BETA10 0x1012b2b3
+MxDSAction::MxDSAction(MxDSAction& p_dsAction) : MxDSObject(p_dsAction)
+{
+	this->CopyFrom(p_dsAction);
+}
+
 // FUNCTION: LEGO1 0x100adbd0
 // FUNCTION: BETA10 0x1012b355
 undefined4 MxDSAction::VTable0x14()