diff --git a/LEGO1/legoinputmanager.cpp b/LEGO1/legoinputmanager.cpp
index 792da404..1b97e917 100644
--- a/LEGO1/legoinputmanager.cpp
+++ b/LEGO1/legoinputmanager.cpp
@@ -1,5 +1,9 @@
 #include "legoinputmanager.h"
 
+#include "decomp.h"
+
+DECOMP_STATIC_ASSERT(sizeof(LegoInputManager) == 824); // 0x10059085
+
 // OFFSET: LEGO1 0x1005b790 STUB
 LegoInputManager::LegoInputManager()
 {
diff --git a/LEGO1/legoinputmanager.h b/LEGO1/legoinputmanager.h
index abd19287..5377544f 100644
--- a/LEGO1/legoinputmanager.h
+++ b/LEGO1/legoinputmanager.h
@@ -3,6 +3,8 @@
 
 #include "mxpresenter.h"
 
+#include "decomp.h"
+
 enum NotificationId
 {
   NONE = 0,
@@ -27,9 +29,9 @@ class LegoInputManager : public MxPresenter
 
   virtual long Tickle() override; // vtable+0x8
 
-  char m_pad00[0x19C];
+  undefined m_pad00[0x15c];
   int m_joystickIndex;
-  char m_pad200[0x194];
+  undefined m_pad200[0x194];
   MxBool m_useJoystick;
 };