diff --git a/LEGO1/gasstationstate.cpp b/LEGO1/gasstationstate.cpp
index d9fa2c29..6172f773 100644
--- a/LEGO1/gasstationstate.cpp
+++ b/LEGO1/gasstationstate.cpp
@@ -1,7 +1,14 @@
 #include "gasstationstate.h"
 
-// OFFSET: LEGO1 0x10005eb0 STUB
+// OFFSET: LEGO1 0x10005eb0
 GasStationState::GasStationState()
 {
-  // TODO
+  m_unk0x18 = 0;
+  m_unk0x1a = 0;
+  m_unk0x1c = 0;
+  m_unk0x1e = 0;
+  m_unk0x20 = 0;
+  m_unk0x08 = -1;
+  m_unk0x0c = -1;
+  m_unk0x10 = -1;
 }
diff --git a/LEGO1/gasstationstate.h b/LEGO1/gasstationstate.h
index a7696bed..d2803f07 100644
--- a/LEGO1/gasstationstate.h
+++ b/LEGO1/gasstationstate.h
@@ -23,6 +23,16 @@ class GasStationState : public LegoState
     return !strcmp(name, GasStationState::ClassName()) || LegoState::IsA(name);
   }
 
+private:
+  undefined4 m_unk0x08;
+  undefined4 m_unk0x0c;
+  undefined4 m_unk0x10;
+  undefined4 m_unk0x14;
+  undefined2 m_unk0x18;
+  undefined2 m_unk0x1a;
+  undefined2 m_unk0x1c;
+  undefined2 m_unk0x1e;
+  undefined m_unk0x20;
 };
 
 #endif // GASSTATIONSTATE_H
diff --git a/LEGO1/legostate.cpp b/LEGO1/legostate.cpp
index 55637dc4..3b43d662 100644
--- a/LEGO1/legostate.cpp
+++ b/LEGO1/legostate.cpp
@@ -1,5 +1,7 @@
 #include "legostate.h"
 
+DECOMP_SIZE_ASSERT(LegoState, 0x08);
+
 // OFFSET: LEGO1 0x10005f40
 LegoState::~LegoState()
 {
diff --git a/LEGO1/legostate.h b/LEGO1/legostate.h
index 904ad323..77246153 100644
--- a/LEGO1/legostate.h
+++ b/LEGO1/legostate.h
@@ -1,6 +1,8 @@
 #ifndef LEGOSTATE_H
 #define LEGOSTATE_H
 
+#include "decomp.h"
+
 #include "mxcore.h"
 
 // VTABLE 0x100d46c0