diff --git a/depends.txt b/depends.txt
index f91ea34..91106bf 100644
--- a/depends.txt
+++ b/depends.txt
@@ -1,3 +1,4 @@
 sfinv?
 sfinv_buttons?
 intllib?
+display_api?
\ No newline at end of file
diff --git a/init.lua b/init.lua
index 70116cc..1aa566c 100644
--- a/init.lua
+++ b/init.lua
@@ -11,7 +11,7 @@ local fuel_cache = {}
 local searches = {}
 
 local progressive_mode = mt.settings:get_bool("craftguide_progressive_mode")
-local sfinv_only       = mt.settings:get_bool("craftguide_sfinv_only")
+local sfinv_only = mt.settings:get_bool("craftguide_sfinv_only") and rawget(_G, "sfinv")
 
 local reg_items = mt.registered_items
 local get_result = mt.get_craft_result