diff --git a/deps/ox/src/ox/fs/filesystem/directory.hpp b/deps/ox/src/ox/fs/filesystem/directory.hpp
index 741ee28b..1e5d246f 100644
--- a/deps/ox/src/ox/fs/filesystem/directory.hpp
+++ b/deps/ox/src/ox/fs/filesystem/directory.hpp
@@ -236,7 +236,7 @@ ox::Error Directory<FileStore, InodeId_t>::write(PathIterator path, InodeId_t in
 
 		const auto entryDataSize = DirectoryEntry<InodeId_t>::DirectoryEntryData::spaceNeeded(name->len() + 1);
 		const auto entrySize = DirectoryEntry<InodeId_t>::spaceNeeded(entryDataSize);
-		const auto newSize = Buffer::spaceNeeded(m_size + entrySize);
+		const auto newSize = old.size() + Buffer::spaceNeeded(m_size + entrySize);
 		auto cpy = ox_malloca(newSize, Buffer, *old, oldStat.value.size);
 		if (cpy == nullptr) {
 			oxTrace("ox::fs::Directory::write::fail") << "Could not allocate memory for copy of Directory";
diff --git a/deps/ox/src/ox/fs/test/tests.cpp b/deps/ox/src/ox/fs/test/tests.cpp
index 1efa5157..e5e4d6cc 100644
--- a/deps/ox/src/ox/fs/test/tests.cpp
+++ b/deps/ox/src/ox/fs/test/tests.cpp
@@ -185,10 +185,10 @@ map<string, int(*)(string)> tests = {
 				oxAssert(dir.find("file1").value == 1, "Could not find file1");
 
 				oxTrace("ox::fs::test::Directory") << "write 2";
-				oxAssert(dir.write("/file3", 3) == 0, "Directory write of file3 failed");
+				oxAssert(dir.write("/file3", 3), "Directory write of file3 failed");
 
 				oxTrace("ox::fs::test::Directory") << "write 3";
-				oxAssert(dir.write("/file2", 2) == 0, "Directory write of file2 failed");
+				oxAssert(dir.write("/file2", 2), "Directory write of file2 failed");
 
 				return 0;
 			}