diff --git a/parts/language/lang_en.lua b/parts/language/lang_en.lua
index 61372a7b..f948aec1 100644
--- a/parts/language/lang_en.lua
+++ b/parts/language/lang_en.lua
@@ -74,8 +74,6 @@ return {
     cc_swap="CC is incompatible when the hold mode is set to Swap.",
     cc_solid="CC is incompatible with filled line in the field.",
     cc_field_too_high="CC is incompatible with fields higher than 40.",
-    ai_prebag="AI is incompatible with custom sequences that contain non-tetrominoes.",
-    ai_mission="AI is incompatible with custom missions.",
     switchSpawnSFX="Please turn on the block spawn SFX!",
     needRestart="Restart to apply all changes.",