--- a/src/hydra-eval-jobs/hydra-eval-jobs.cc
+++ b/src/hydra-eval-jobs/hydra-eval-jobs.cc
@@ -64,11 +64,11 @@
 
 static std::string queryMetaStrings(EvalState & state, DrvInfo & drv, const string & name, const string & subAttribute)
 {
-    Strings res;
+    std::list<std::string_view> res;
     std::function<void(Value & v)> rec;
 
     rec = [&](Value & v) {
-        state.forceValue(v);
+        state.forceValue(v, noPos);
         if (v.type() == nString)
             res.push_back(v.string.s);
         else if (v.isList())
@@ -112,7 +112,7 @@
         callFlake(state, lockedFlake, *vFlake);
 
         auto vOutputs = vFlake->attrs->get(state.symbols.create("outputs"))->value;
-        state.forceValue(*vOutputs);
+        state.forceValue(*vOutputs, noPos);
 
         auto aHydraJobs = vOutputs->attrs->get(state.symbols.create("hydraJobs"));
         if (!aHydraJobs)
@@ -191,7 +191,7 @@
                     state.forceList(*a->value, *a->pos);
                     for (unsigned int n = 0; n < a->value->listSize(); ++n) {
                         auto v = a->value->listElems()[n];
-                        state.forceValue(*v);
+                        state.forceValue(*v, noPos);
                         if (v->type() == nString)
                             job["namedConstituents"].push_back(state.forceStringNoCtx(*v));
                     }