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-rw-r--r--src/script/lua_api/l_inventory.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/script/lua_api/l_inventory.cpp b/src/script/lua_api/l_inventory.cpp
index e41b5cb41..434d0a76c 100644
--- a/src/script/lua_api/l_inventory.cpp
+++ b/src/script/lua_api/l_inventory.cpp
@@ -280,6 +280,7 @@ int InvRef::l_set_lists(lua_State *L)
Server *server = getServer(L);
lua_pushnil(L);
+ luaL_checktype(L, 2, LUA_TTABLE);
while (lua_next(L, 2)) {
const char *listname = lua_tostring(L, -2);
read_inventory_list(L, -1, tempInv, listname, server);