1 files changed, 3 insertions, 2 deletions
diff --git a/src/buildtool/file_system/git_tree.cpp b/src/buildtool/file_system/git_tree.cpp
index a369af78..c3aa92e7 100644
--- a/src/buildtool/file_system/git_tree.cpp
+++ b/src/buildtool/file_system/git_tree.cpp
@@ -44,10 +44,11 @@ namespace {
         return nullptr;
     }
     if (++it != end) {
-        if (not entry->IsTree()) {
+        auto const& subtree = entry->Tree();
+        if (not subtree) {
             return nullptr;
         }
-        return LookupEntryPyPath(*entry->Tree(), it, end);
+        return LookupEntryPyPath(*subtree, it, end);
     }
     return entry;
 }