diff --git a/src/libcmd/repl.cc b/src/libcmd/repl.cc
index 9b12f8fa2..4158439b6 100644
--- a/src/libcmd/repl.cc
+++ b/src/libcmd/repl.cc
@@ -397,7 +397,7 @@ StringSet NixRepl::completePrefix(const std::string & prefix)
             Expr * e = parseString(expr);
             Value v;
             e->eval(*state, *env, v);
-            state->forceAttrs(v, noPos, "nevermind, it is ignored anyway");
+            state->forceAttrs(v, noPos, "while evaluating an attrset for the purpose of completion (this error should not be displayed; file an issue?)");
 
             for (auto & i : *v.attrs) {
                 std::string_view name = state->symbols[i.name];