diff --git a/compiler/damlc/daml-lf-conversion/src/DA/Daml/LFConversion.hs b/compiler/damlc/daml-lf-conversion/src/DA/Daml/LFConversion.hs
index 0b1504d402..1f0e3fb7bb 100644
--- a/compiler/damlc/daml-lf-conversion/src/DA/Daml/LFConversion.hs
+++ b/compiler/damlc/daml-lf-conversion/src/DA/Daml/LFConversion.hs
@@ -608,7 +608,8 @@ convertBind2 env (NonRec name x)
     , is name `elem` internals
     = pure []
     -- NOTE(MH): Desugaring `template X` will result in a type class
-    -- `XInstance` which has methods `createX`, `fetchX` and `exerciseXY`
+    -- `XInstance` which has methods `_createX`, `_fetchX`, `_exerciseXY`,
+    -- `_fetchByKeyX` and `_lookupByKeyX`
     -- (among others). The implementations of these methods are replaced
     -- with DAML-LF primitives in `convertGenericChoice` below. As part of
     -- this rewriting we also need to erase the default implementations of
@@ -616,7 +617,7 @@ convertBind2 env (NonRec name x)
     --
     -- TODO(MH): The check is an approximation which will fail when users
     -- start the name of their own methods with, say, `_exercise`.
-    | any (`isPrefixOf` is name) [ "$"++prefix++"_"++method | prefix <- ["dm", "c"], method <- ["create", "fetch", "exercise"] ]
+    | any (`isPrefixOf` is name) [ "$"++prefix++"_"++method | prefix <- ["dm", "c"], method <- ["create", "fetch", "exercise", "fetchByKey", "lookupByKey"] ]
     = pure []
     -- NOTE(MH): Our inline return type syntax produces a local letrec for
     -- recursive functions. We currently don't support local letrecs.