diff --git a/src/libexpr/value.hh b/src/libexpr/value.hh
index bcff8ae55..72a3a2b32 100644
--- a/src/libexpr/value.hh
+++ b/src/libexpr/value.hh
@@ -424,10 +424,9 @@ public:
     SourcePath path() const
     {
         assert(internalType == tPath);
-        return SourcePath {
-            .accessor = ref(_path.accessor->shared_from_this()),
-            .path = CanonPath(CanonPath::unchecked_t(), _path.path)
-        };
+        return SourcePath(
+            ref(_path.accessor->shared_from_this()),
+            CanonPath(CanonPath::unchecked_t(), _path.path));
     }
 
     std::string_view string_view() const
diff --git a/src/libfetchers/fetchers.cc b/src/libfetchers/fetchers.cc
index 60208619e..5fd9e069f 100644
--- a/src/libfetchers/fetchers.cc
+++ b/src/libfetchers/fetchers.cc
@@ -374,7 +374,7 @@ void InputScheme::clone(const Input & input, const Path & destDir) const
 std::pair<StorePath, Input> InputScheme::fetch(ref<Store> store, const Input & input)
 {
     auto [accessor, input2] = getAccessor(store, input);
-    auto storePath = accessor->root().fetchToStore(store, input2.getName());
+    auto storePath = SourcePath(accessor).fetchToStore(store, input2.getName());
     return {storePath, input2};
 }
 
diff --git a/src/libfetchers/input-accessor.cc b/src/libfetchers/input-accessor.cc
index 85dc4609f..f54a5a6fd 100644
--- a/src/libfetchers/input-accessor.cc
+++ b/src/libfetchers/input-accessor.cc
@@ -53,11 +53,6 @@ StorePath InputAccessor::fetchToStore(
     return storePath;
 }
 
-SourcePath InputAccessor::root()
-{
-    return {ref(shared_from_this()), CanonPath::root};
-}
-
 std::ostream & operator << (std::ostream & str, const SourcePath & path)
 {
     str << path.to_string();
@@ -88,7 +83,7 @@ SourcePath SourcePath::parent() const
 
 SourcePath SourcePath::resolveSymlinks() const
 {
-    auto res = accessor->root();
+    auto res = SourcePath(accessor);
 
     int linksAllowed = 1024;
 
diff --git a/src/libfetchers/input-accessor.hh b/src/libfetchers/input-accessor.hh
index 26d17f064..d5ac238b1 100644
--- a/src/libfetchers/input-accessor.hh
+++ b/src/libfetchers/input-accessor.hh
@@ -36,8 +36,6 @@ struct InputAccessor : virtual SourceAccessor, std::enable_shared_from_this<Inpu
         FileIngestionMethod method = FileIngestionMethod::Recursive,
         PathFilter * filter = nullptr,
         RepairFlag repair = NoRepair);
-
-    SourcePath root();
 };
 
 /**
@@ -51,6 +49,11 @@ struct SourcePath
     ref<InputAccessor> accessor;
     CanonPath path;
 
+    SourcePath(ref<InputAccessor> accessor, CanonPath path = CanonPath::root)
+        : accessor(std::move(accessor))
+        , path(std::move(path))
+    { }
+
     std::string_view baseName() const;
 
     /**