diff --git a/searx/data/engine_traits.json b/searx/data/engine_traits.json
index 9b98182d9..7b498dd62 100644
--- a/searx/data/engine_traits.json
+++ b/searx/data/engine_traits.json
@@ -4081,6 +4081,7 @@
         "ext",
         "fa",
         "fat",
+        "ff",
         "fi",
         "fiu-vro",
         "fj",
@@ -4146,6 +4147,7 @@
         "km",
         "kn",
         "ko",
+        "koi",
         "krc",
         "ks",
         "ksh",