1 files changed, 2 insertions, 4 deletions
diff --git a/src/libstore/build/derivation-goal.cc b/src/libstore/build/derivation-goal.cc
index a97c32599..ef16cd011 100644
--- a/src/libstore/build/derivation-goal.cc
+++ b/src/libstore/build/derivation-goal.cc
@@ -1204,11 +1204,9 @@ HookReply DerivationGoal::tryBuildHook()
         throw;
     }
 
-    CommonProto::WriteConn conn { hook->sink };
-
     /* Tell the hook all the inputs that have to be copied to the
        remote system. */
-    conn.to << CommonProto::write(worker.store, conn, inputPaths);
+    hook->sink << CommonProto::write(worker.store, {}, inputPaths);
 
     /* Tell the hooks the missing outputs that have to be copied back
        from the remote system. */
@@ -1219,7 +1217,7 @@ HookReply DerivationGoal::tryBuildHook()
             if (buildMode != bmCheck && status.known && status.known->isValid()) continue;
             missingOutputs.insert(outputName);
         }
-        conn.to << CommonProto::write(worker.store, conn, missingOutputs);
+        hook->sink << CommonProto::write(worker.store, {}, missingOutputs);
     }
 
     hook->sink = FdSink();