diff --git a/src/libfetchers-tests/git-utils.cc b/src/libfetchers-tests/git-utils.cc
index 9164f7e5b..10e98141f 100644
--- a/src/libfetchers-tests/git-utils.cc
+++ b/src/libfetchers-tests/git-utils.cc
@@ -79,7 +79,7 @@ TEST_F(GitUtilsTest, sink_basic)
     // sink->createHardlink("foo-1.1/links/foo-2", CanonPath("foo-1.1/hello"));
 
     auto result = repo->dereferenceSingletonDirectory(sink->flush());
-    auto accessor = repo->getAccessor(result, false, false);
+    auto accessor = repo->getAccessor(result, false);
     auto entries = accessor->readDirectory(CanonPath::root);
     ASSERT_EQ(entries.size(), 5);
     ASSERT_EQ(accessor->readFile(CanonPath("hello")), "hello world");
diff --git a/src/libfetchers/git-utils.cc b/src/libfetchers/git-utils.cc
index dca97a871..a2761a543 100644
--- a/src/libfetchers/git-utils.cc
+++ b/src/libfetchers/git-utils.cc
@@ -485,13 +485,15 @@ struct GitRepoImpl : GitRepo, std::enable_shared_from_this<GitRepoImpl>
     /**
      * A 'GitSourceAccessor' with no regard for export-ignore or any other transformations.
      */
-    ref<GitSourceAccessor> getRawAccessor(const Hash & rev, bool smudgeLfs);
+    ref<GitSourceAccessor> getRawAccessor(
+        const Hash & rev,
+        bool smudgeLfs = false);
 
     ref<SourceAccessor> getAccessor(
         const Hash & rev,
         bool exportIgnore,
         std::string displayPrefix,
-        bool smudgeLfs) override;
+        bool smudgeLfs = false) override;
 
     ref<SourceAccessor> getAccessor(const WorkdirInfo & wd, bool exportIgnore, MakeNotAllowedError e) override;
 
@@ -610,7 +612,7 @@ struct GitRepoImpl : GitRepo, std::enable_shared_from_this<GitRepoImpl>
 
     Hash treeHashToNarHash(const Hash & treeHash) override
     {
-        auto accessor = getAccessor(treeHash, false, "", false);
+        auto accessor = getAccessor(treeHash, false, "");
 
         fetchers::Cache::Key cacheKey{"treeHashToNarHash", {{"treeHash", treeHash.gitRev()}}};
 
@@ -1187,7 +1189,9 @@ struct GitFileSystemObjectSinkImpl : GitFileSystemObjectSink
     }
 };
 
-ref<GitSourceAccessor> GitRepoImpl::getRawAccessor(const Hash & rev, bool smudgeLfs)
+ref<GitSourceAccessor> GitRepoImpl::getRawAccessor(
+    const Hash & rev,
+    bool smudgeLfs)
 {
     auto self = ref<GitRepoImpl>(shared_from_this());
     return make_ref<GitSourceAccessor>(self, rev, smudgeLfs);
@@ -1238,7 +1242,7 @@ std::vector<std::tuple<GitRepoImpl::Submodule, Hash>> GitRepoImpl::getSubmodules
     /* Read the .gitmodules files from this revision. */
     CanonPath modulesFile(".gitmodules");
 
-    auto accessor = getAccessor(rev, exportIgnore, "", false);
+    auto accessor = getAccessor(rev, exportIgnore, "");
     if (!accessor->pathExists(modulesFile)) return {};
 
     /* Parse it and get the revision of each submodule. */
@@ -1249,7 +1253,7 @@ std::vector<std::tuple<GitRepoImpl::Submodule, Hash>> GitRepoImpl::getSubmodules
 
     std::vector<std::tuple<Submodule, Hash>> result;
 
-    auto rawAccessor = getRawAccessor(rev, false);
+    auto rawAccessor = getRawAccessor(rev);
 
     for (auto & submodule : parseSubmodules(pathTemp)) {
         /* Filter out .gitmodules entries that don't exist or are not
diff --git a/src/libfetchers/git-utils.hh b/src/libfetchers/git-utils.hh
index ba0e69146..c683bd058 100644
--- a/src/libfetchers/git-utils.hh
+++ b/src/libfetchers/git-utils.hh
@@ -90,7 +90,7 @@ struct GitRepo
         const Hash & rev,
         bool exportIgnore,
         std::string displayPrefix,
-        bool smudgeLfs) = 0;
+        bool smudgeLfs = false) = 0;
 
     virtual ref<SourceAccessor> getAccessor(const WorkdirInfo & wd, bool exportIgnore, MakeNotAllowedError makeNotAllowedError) = 0;
 
diff --git a/src/libfetchers/github.cc b/src/libfetchers/github.cc
index d35998949..ec469df7c 100644
--- a/src/libfetchers/github.cc
+++ b/src/libfetchers/github.cc
@@ -297,8 +297,7 @@ struct GitArchiveInputScheme : InputScheme
         auto accessor = getTarballCache()->getAccessor(
             tarballInfo.treeHash,
             false,
-            "«" + input.to_string() + "»",
-            false);
+            "«" + input.to_string() + "»");
 
         return {accessor, input};
     }
diff --git a/src/libfetchers/tarball.cc b/src/libfetchers/tarball.cc
index 1ad3b26f4..699612e25 100644
--- a/src/libfetchers/tarball.cc
+++ b/src/libfetchers/tarball.cc
@@ -119,7 +119,7 @@ static DownloadTarballResult downloadTarball_(
             .treeHash = treeHash,
             .lastModified = (time_t) getIntAttr(infoAttrs, "lastModified"),
             .immutableUrl = maybeGetStrAttr(infoAttrs, "immutableUrl"),
-            .accessor = getTarballCache()->getAccessor(treeHash, false, displayPrefix, false),
+            .accessor = getTarballCache()->getAccessor(treeHash, false, displayPrefix),
         };
     };