diff --git a/LEGO1/mxdsmediaaction.cpp b/LEGO1/mxdsmediaaction.cpp
index e01c3f90..49bd1a70 100644
--- a/LEGO1/mxdsmediaaction.cpp
+++ b/LEGO1/mxdsmediaaction.cpp
@@ -8,9 +8,9 @@ MxDSMediaAction::MxDSMediaAction()
   this->m_unka0 = 0;
   this->m_unka4 = 0;
   this->m_unka8 = 0;
-  *this->m_unkb4 = 0xffffffff;
+  this->m_unkb4 = (int*) 0xffffffff;
   this->m_unkb0 = 0;
-  *this->m_unkac = 1;
+  this->m_unkac = (int*) 1;
   this->SetType(MxDSType_MediaAction);
 }
 
diff --git a/LEGO1/mxdsmediaaction.h b/LEGO1/mxdsmediaaction.h
index c1868a05..8445f8d5 100644
--- a/LEGO1/mxdsmediaaction.h
+++ b/LEGO1/mxdsmediaaction.h
@@ -25,14 +25,15 @@ class MxDSMediaAction : public MxDSAction
     return !strcmp(name, MxDSMediaAction::ClassName()) || MxDSAction::IsA(name);
   }
 private:
-  undefined* m_unk98;
-  undefined* m_unk9c;
-  undefined* m_unka0;
-  undefined* m_unka4;
-  undefined* m_unka8;
-  undefined* m_unkb4;
-  undefined* m_unkb0;
-  undefined* m_unkac;
+  MxS32* m_unk94;
+  MxS32* m_unk98;
+  MxS32* m_unk9c;
+  MxS32* m_unka0;
+  MxS32* m_unka4;
+  MxS32* m_unka8;
+  MxS32* m_unkac;
+  MxS32* m_unkb0;
+  MxS32* m_unkb4;
 };
 
 #endif // MXDSMEDIAACTION_H