1 files changed, 6 insertions, 6 deletions

diff --git a/src/libfetchers/tarball.cc b/src/libfetchers/tarball.cc
index 3e9004223..560ecbd7e 100644
--- a/src/libfetchers/tarball.cc
+++ b/src/libfetchers/tarball.cc
@@ -71,7 +71,8 @@ DownloadFileResult downloadFile(
         info.narHash = hashString(HashType::SHA256, *sink.s);
         info.narSize = sink.s->size();
         info.ca = makeFixedOutputCA(FileIngestionMethod::Flat, hash);
-        store->addToStore(info, sink.s, NoRepair, NoCheckSigs);
+        auto source = StringSource { *sink.s };
+        store->addToStore(info, source, NoRepair, NoCheckSigs);
         storePath = std::move(info.path);
     }
 
@@ -195,9 +196,9 @@ struct TarballInput : Input
         // NAR hashes are preferred over file hashes since tar/zip files
         // don't have a canonical representation.
         if (narHash)
-            url2.query.insert_or_assign("narHash", narHash->to_string(Base::SRI));
+            url2.query.insert_or_assign("narHash", narHash->to_string(Base::SRI, true));
         else if (hash)
-            url2.query.insert_or_assign("hash", hash->to_string(Base::SRI));
+            url2.query.insert_or_assign("hash", hash->to_string(Base::SRI, true));
         return url2;
     }
 
@@ -206,7 +207,7 @@ struct TarballInput : Input
         Attrs attrs;
         attrs.emplace("url", url.to_string());
         if (hash)
-            attrs.emplace("hash", hash->to_string(Base::SRI));
+            attrs.emplace("hash", hash->to_string(Base::SRI, true));
         return attrs;
     }
 
@@ -263,8 +264,7 @@ struct TarballInputScheme : InputScheme
 
         auto input = std::make_unique<TarballInput>(parseURL(getStrAttr(attrs, "url")));
         if (auto hash = maybeGetStrAttr(attrs, "hash"))
-            // FIXME: require SRI hash.
-            input->hash = Hash(*hash);
+            input->hash = newHashAllowEmpty(*hash, HashType::Unknown);
 
         return input;
     }