diff --git a/LEGO1/scorestate.cpp b/LEGO1/scorestate.cpp
index 6d389b38..1a649e2f 100644
--- a/LEGO1/scorestate.cpp
+++ b/LEGO1/scorestate.cpp
@@ -1,5 +1,7 @@
 #include "scorestate.h"
 
+DECOMP_SIZE_ASSERT(ScoreState, 0x0C);
+
 // OFFSET: LEGO1 0x1000de20
 MxBool ScoreState::VTable0x14() {
   return FALSE;