diff --git a/LEGO1/legoobjectfactory.cpp b/LEGO1/legoobjectfactory.cpp
index c5747482..222569ea 100644
--- a/LEGO1/legoobjectfactory.cpp
+++ b/LEGO1/legoobjectfactory.cpp
@@ -29,7 +29,7 @@ MxCore *LegoObjectFactory::Create(const char *p_name)
 }
 
 // OFFSET: LEGO1 0x1000fb30 STUB
-void LegoObjectFactory::Destroy(void *p_object)
+void LegoObjectFactory::Destroy(MxCore *p_object)
 {
   // TODO
 }
diff --git a/LEGO1/legoobjectfactory.h b/LEGO1/legoobjectfactory.h
index d01a1196..f21e6053 100644
--- a/LEGO1/legoobjectfactory.h
+++ b/LEGO1/legoobjectfactory.h
@@ -12,7 +12,7 @@ class LegoObjectFactory : public MxObjectFactory
 public:
   LegoObjectFactory();
   virtual MxCore *Create(const char *p_name) override; // vtable 0x14
-  virtual void Destroy(void *p_object) override; // vtable 0x18
+  virtual void Destroy(MxCore *p_object) override; // vtable 0x18
 private:
 #define X(V) MxAtomId m_id##V;
   FOR_LEGOOBJECTFACTORY_OBJECTS(X)
diff --git a/LEGO1/mxobjectfactory.cpp b/LEGO1/mxobjectfactory.cpp
index bc8e4ece..e4880411 100644
--- a/LEGO1/mxobjectfactory.cpp
+++ b/LEGO1/mxobjectfactory.cpp
@@ -41,7 +41,7 @@ MxCore *MxObjectFactory::Create(const char *p_name)
 }
 
 // OFFSET: LEGO1 0x100b1a30
-void MxObjectFactory::Destroy(void *p_object)
+void MxObjectFactory::Destroy(MxCore *p_object)
 {
-  delete (MxCore*)p_object;
+  delete p_object;
 }
diff --git a/LEGO1/mxobjectfactory.h b/LEGO1/mxobjectfactory.h
index b7e0be07..078761f4 100644
--- a/LEGO1/mxobjectfactory.h
+++ b/LEGO1/mxobjectfactory.h
@@ -38,7 +38,7 @@ class MxObjectFactory : public MxCore
   }
 
   virtual MxCore *Create(const char *p_name); // vtable 0x14
-  virtual void Destroy(void *p_object); // vtable 0x18
+  virtual void Destroy(MxCore *p_object); // vtable 0x18
 private:
 #define X(V) MxAtomId m_id##V;
   FOR_MXOBJECTFACTORY_OBJECTS(X)