diff --git a/LEGO1/mxgeometry/mxgeometry3d.h b/LEGO1/mxgeometry/mxgeometry3d.h
index f8fd3a03..209eb1d4 100644
--- a/LEGO1/mxgeometry/mxgeometry3d.h
+++ b/LEGO1/mxgeometry/mxgeometry3d.h
@@ -3,8 +3,8 @@
 
 #include "decomp.h"
 #include "realtime/vector.h"
-#include "realtime/vector2d.h"
-#include "realtime/vector3d.h"
+#include "realtime/vector2d.inl.h"
+#include "realtime/vector3d.inl.h"
 
 // VTABLE: LEGO1 0x100d4488
 // VTABLE: BETA10 0x101b84d0
diff --git a/LEGO1/mxgeometry/mxgeometry4d.h b/LEGO1/mxgeometry/mxgeometry4d.h
index 44102427..591b2bab 100644
--- a/LEGO1/mxgeometry/mxgeometry4d.h
+++ b/LEGO1/mxgeometry/mxgeometry4d.h
@@ -3,8 +3,8 @@
 
 #include "decomp.h"
 #include "realtime/matrix.h"
-#include "realtime/matrix4d.h"
-#include "realtime/vector4d.h"
+#include "realtime/matrix4d.inl.h"
+#include "realtime/vector4d.inl.h"
 
 // VTABLE: LEGO1 0x100d41e8
 // VTABLE: BETA10 0x101bab78
diff --git a/LEGO1/mxgeometry/mxmatrix.h b/LEGO1/mxgeometry/mxmatrix.h
index 6b5b9284..929dc3c6 100644
--- a/LEGO1/mxgeometry/mxmatrix.h
+++ b/LEGO1/mxgeometry/mxmatrix.h
@@ -2,7 +2,7 @@
 #define MXMATRIX_H
 
 #include "realtime/matrix.h"
-#include "realtime/matrix4d.h"
+#include "realtime/matrix4d.inl.h"
 
 // VTABLE: LEGO1 0x100d4300
 // VTABLE: BETA10 0x101b82e0
@@ -37,6 +37,6 @@ class MxMatrix : public Matrix4 {
 };
 
 // Must be included here for correct ordering in binary
-#include "realtime/vector4d.h"
+#include "realtime/vector4d.inl.h"
 
 #endif // MXMATRIX_H
diff --git a/LEGO1/realtime/matrix4d.h b/LEGO1/realtime/matrix4d.inl.h
similarity index 100%
rename from LEGO1/realtime/matrix4d.h
rename to LEGO1/realtime/matrix4d.inl.h
diff --git a/LEGO1/realtime/vector2d.h b/LEGO1/realtime/vector2d.inl.h
similarity index 100%
rename from LEGO1/realtime/vector2d.h
rename to LEGO1/realtime/vector2d.inl.h
diff --git a/LEGO1/realtime/vector3d.h b/LEGO1/realtime/vector3d.inl.h
similarity index 98%
rename from LEGO1/realtime/vector3d.h
rename to LEGO1/realtime/vector3d.inl.h
index 28a7cd26..bf3157b5 100644
--- a/LEGO1/realtime/vector3d.h
+++ b/LEGO1/realtime/vector3d.inl.h
@@ -2,7 +2,7 @@
 #define VECTOR3D_H
 
 #include "vector.h"
-#include "vector2d.h"
+#include "vector2d.inl.h"
 
 // FUNCTION: LEGO1 0x10002270
 // FUNCTION: BETA10 0x10011350
diff --git a/LEGO1/realtime/vector4d.h b/LEGO1/realtime/vector4d.inl.h
similarity index 100%
rename from LEGO1/realtime/vector4d.h
rename to LEGO1/realtime/vector4d.inl.h