diff --git a/LEGO1/lego/legoomni/include/legoanimationmanager.h b/LEGO1/lego/legoomni/include/legoanimationmanager.h
index 45948632..3edb6cc9 100644
--- a/LEGO1/lego/legoomni/include/legoanimationmanager.h
+++ b/LEGO1/lego/legoomni/include/legoanimationmanager.h
@@ -19,12 +19,14 @@ struct Character {
 	MxBool m_active;         // 0x14
 };
 
+// SIZE 0x08
 struct Vehicle {
 	char* m_name;        // 0x00
 	undefined m_unk0x04; // 0x04
 	MxBool m_unk0x05;    // 0x05
 };
 
+// SIZE 0x18
 struct Unknown0x3c {
 	LegoROI* m_roi;            // 0x00
 	MxU32 m_id;                // 0x04
diff --git a/LEGO1/lego/legoomni/src/common/legoanimationmanager.cpp b/LEGO1/lego/legoomni/src/common/legoanimationmanager.cpp
index 62ce5deb..7361dffe 100644
--- a/LEGO1/lego/legoomni/src/common/legoanimationmanager.cpp
+++ b/LEGO1/lego/legoomni/src/common/legoanimationmanager.cpp
@@ -10,6 +10,9 @@
 #include <io.h>
 
 DECOMP_SIZE_ASSERT(LegoAnimationManager, 0x500)
+DECOMP_SIZE_ASSERT(Character, 0x18)
+DECOMP_SIZE_ASSERT(Vehicle, 0x8)
+DECOMP_SIZE_ASSERT(Unknown0x3c, 0x18)
 
 // GLOBAL: LEGO1 0x100f6d10
 Vehicle g_vehicles[] = {"bikebd", 0,        FALSE, "bikepg", 0,        FALSE, "bikerd", 0,       FALSE, "bikesy", 0,