diff --git a/src/hydra-queue-runner/builder.cc b/src/hydra-queue-runner/builder.cc
index bc460856..94bbe223 100644
--- a/src/hydra-queue-runner/builder.cc
+++ b/src/hydra-queue-runner/builder.cc
@@ -466,7 +466,7 @@ void State::failStep(
             /* Remember failed paths in the database so that they
                won't be built again. */
             if (result.stepStatus != bsCachedFailure && result.canCache)
-                for (auto & path : step->drv.outputPaths())
+                for (auto & path : step->drv->outputPaths())
                     txn.exec_params0("insert into FailedPaths values ($1)", localStore->printStorePath(path));
 
             txn.commit();
diff --git a/src/hydra-queue-runner/hydra-queue-runner.cc b/src/hydra-queue-runner/hydra-queue-runner.cc
index 558005e7..c44d1cb1 100644
--- a/src/hydra-queue-runner/hydra-queue-runner.cc
+++ b/src/hydra-queue-runner/hydra-queue-runner.cc
@@ -258,7 +258,7 @@ unsigned int State::createBuildStep(pqxx::work & txn, time_t startTime, BuildID
          localStore->printStorePath(step->drvPath),
          status == bsBusy ? 1 : 0,
          startTime != 0 ? std::make_optional(startTime) : std::nullopt,
-         step->drv.platform,
+         step->drv->platform,
          status != bsBusy ? std::make_optional((int) status) : std::nullopt,
          propagatedFrom != 0 ? std::make_optional(propagatedFrom) : std::nullopt, // internal::params
          errorMsg != "" ? std::make_optional(errorMsg) : std::nullopt,
@@ -267,7 +267,7 @@ unsigned int State::createBuildStep(pqxx::work & txn, time_t startTime, BuildID
 
     if (r.affected_rows() == 0) goto restart;
 
-    for (auto & output : step->drv.outputs)
+    for (auto & output : step->drv->outputs)
         txn.exec_params0
             ("insert into BuildStepOutputs (build, stepnr, name, path) values ($1, $2, $3, $4)",
              buildId, stepNr, output.first, localStore->printStorePath(output.second.path));
@@ -452,7 +452,7 @@ void State::markSucceededBuild(pqxx::work & txn, Build::ptr build,
 bool State::checkCachedFailure(Step::ptr step, Connection & conn)
 {
     pqxx::work txn(conn);
-    for (auto & path : step->drv.outputPaths())
+    for (auto & path : step->drv->outputPaths())
         if (!txn.exec_params("select 1 from FailedPaths where path = $1", localStore->printStorePath(path)).empty())
             return true;
     return false;
diff --git a/src/hydra-queue-runner/queue-monitor.cc b/src/hydra-queue-runner/queue-monitor.cc
index 54958521..60b8545a 100644
--- a/src/hydra-queue-runner/queue-monitor.cc
+++ b/src/hydra-queue-runner/queue-monitor.cc
@@ -172,11 +172,11 @@ bool State::getQueuedBuilds(Connection & conn,
 
                 auto res = txn.exec_params1
                     ("select max(build) from BuildSteps where drvPath = $1 and startTime != 0 and stopTime != 0 and status = 1",
-                     localStore->printStorePathh(ex.step->drvPath));
+                     localStore->printStorePath(ex.step->drvPath));
                 if (!res[0].is_null()) propagatedFrom = res[0].as<BuildID>();
 
                 if (!propagatedFrom) {
-                    for (auto & output : ex.step->drv.outputs) {
+                    for (auto & output : ex.step->drv->outputs) {
                         auto res = txn.exec_params
                             ("select max(s.build) from BuildSteps s join BuildStepOutputs o on s.build = o.build where path = $1 and startTime != 0 and stopTime != 0 and status = 1",
                              localStore->printStorePath(output.second.path));