diff --git a/polymer/eduke32/build/src/engine.c b/polymer/eduke32/build/src/engine.c
index 4389aca9a..fdac7b856 100644
--- a/polymer/eduke32/build/src/engine.c
+++ b/polymer/eduke32/build/src/engine.c
@@ -51,6 +51,9 @@
 
 #if !defined DEBUG_MAIN_ARRAYS
 # define HAVE_CLIPSHAPE_FEATURE
+const int32_t engine_main_arrays_are_static = 0;  // for Lunatic
+#else
+const int32_t engine_main_arrays_are_static = 1;
 #endif
 
 float debug1, debug2;
diff --git a/polymer/eduke32/source/lunatic/defs.ilua b/polymer/eduke32/source/lunatic/defs.ilua
index 3b18fea3d..7e6324fcc 100644
--- a/polymer/eduke32/source/lunatic/defs.ilua
+++ b/polymer/eduke32/source/lunatic/defs.ilua
@@ -79,14 +79,27 @@ typedef struct
     const int8_t _do_not_use[24];
 } actor_t;
 #pragma pack(pop)
+
+int32_t engine_main_arrays_are_static;
 ]]
 
-ffi.cdef[[
+if (ffi.C.engine_main_arrays_are_static) then
+    ffi.cdef[[
+sectortype sector[];
+walltype wall[];
+spritetype sprite[];
+spriteext_t spriteext[];
+]]
+else
+    ffi.cdef[[
 sectortype *sector;
 walltype *wall;
 spritetype *sprite;
 spriteext_t *spriteext;
+]]
+end
 
+ffi.cdef[[
 const int16_t numsectors, numwalls;
 
 const int16_t headspritesect[16384+1], headspritestat[1024+1];
diff --git a/polymer/eduke32/source/lunatic/dynsymlist b/polymer/eduke32/source/lunatic/dynsymlist
index 8e783efff..22fe81a83 100644
--- a/polymer/eduke32/source/lunatic/dynsymlist
+++ b/polymer/eduke32/source/lunatic/dynsymlist
@@ -1,4 +1,6 @@
 {
+engine_main_arrays_are_static;
+
 sector;
 wall;
 sprite;