1 files changed, 4 insertions, 2 deletions
diff --git a/src/nix/add-to-store.cc b/src/nix/add-to-store.cc
index dc34a83ca..b92597cc2 100644
--- a/src/nix/add-to-store.cc
+++ b/src/nix/add-to-store.cc
@@ -53,8 +53,10 @@ struct CmdAddToStore : MixDryRun, StoreCommand
             .hash = info.narHash
         };
 
-        if (!dryRun)
-            store->addToStore(info, sink.s);
+        if (!dryRun) {
+            auto source = StringSource { *sink.s };
+            store->addToStore(info, source);
+        }
 
         logger->stdout("%s", store->printStorePath(info.path));
     }