diff --git a/LEGO1/mxstillpresenter.cpp b/LEGO1/mxstillpresenter.cpp
index bc2b03b5..11a0e252 100644
--- a/LEGO1/mxstillpresenter.cpp
+++ b/LEGO1/mxstillpresenter.cpp
@@ -1 +1,5 @@
 #include "mxstillpresenter.h"
+
+#include "decomp.h"
+
+DECOMP_STATIC_ASSERT(sizeof(MxStillPresenter) == 108);
diff --git a/LEGO1/mxstillpresenter.h b/LEGO1/mxstillpresenter.h
index d9376b8e..9b7c5810 100644
--- a/LEGO1/mxstillpresenter.h
+++ b/LEGO1/mxstillpresenter.h
@@ -3,11 +3,18 @@
 
 #include "mxvideopresenter.h"
 
+#include "decomp.h"
+
 // VTABLE 0x100d7a38
 // SIZE 0x6c
 class MxStillPresenter : public MxVideoPresenter
 {
 public:
+  MxStillPresenter() {
+    m_unk68 = 0;
+  }
+  undefined4 m_unk64;
+  undefined4 m_unk68;
 };
 
 #endif // MXSTILLPRESENTER_H