diff --git a/randovania_lupa/luaapi.pxd b/randovania_lupa/luaapi.pxd
index 76f274fa..39c4d0c7 100644
--- a/randovania_lupa/luaapi.pxd
+++ b/randovania_lupa/luaapi.pxd
@@ -148,7 +148,6 @@ cdef extern from "lua.h" nogil:
                                        char *chunkname)
 
     int   lua_dump (lua_State *L, lua_Writer writer, void *data)
-    int   luaU_dump (lua_State *L, const Proto* f, lua_Writer writer, void *data, int strip)
 
     # coroutine functions
     int  lua_yield (lua_State *L, int nresults)
@@ -297,6 +296,9 @@ cdef extern from "lstate.h" nogil:
 cdef extern from "lobject.h":
     Closure* clvalue(TValue *o)         # clvalue(o)	check_exp(ttisfunction(o), &(o)->value.gc->cl)
 
+cdef extern from "lundump.h" nogil:
+    int   luaU_dump (lua_State *L, const Proto* f, lua_Writer writer, void *data, int strip)
+
 ################################################################################
 # lauxlib.h
 ################################################################################