6 files changed, 5 insertions, 7 deletions
diff --git a/include/cru/common/io/MemoryStream.hpp b/include/cru/common/io/MemoryStream.hpp
index 96eea226..070ef2c6 100644
--- a/include/cru/common/io/MemoryStream.hpp
+++ b/include/cru/common/io/MemoryStream.hpp
@@ -29,8 +29,6 @@ class CRU_BASE_API MemoryStream : public Stream {
   bool CanWrite() override;
   Index Write(const std::byte* buffer, Index offset, Index size) override;
 
-  void Flush() override;
-
  private:
   std::byte* buffer_ = nullptr;
   Index size_ = 0;
diff --git a/include/cru/common/io/Stream.hpp b/include/cru/common/io/Stream.hpp
index 5fa307ed..d75f3ee3 100644
--- a/include/cru/common/io/Stream.hpp
+++ b/include/cru/common/io/Stream.hpp
@@ -31,7 +31,7 @@ class CRU_BASE_API Stream : public Object {
   virtual Index Write(const std::byte* buffer, Index offset, Index size) = 0;
   virtual Index Write(const std::byte* buffer, Index size);
 
-  virtual void Flush() = 0;
+  virtual void Flush();
 
   virtual void Close();
 };
diff --git a/include/cru/common/io/UnixFileStream.hpp b/include/cru/common/io/UnixFileStream.hpp
index afeab184..8bd3829a 100644
--- a/include/cru/common/io/UnixFileStream.hpp
+++ b/include/cru/common/io/UnixFileStream.hpp
@@ -29,8 +29,6 @@ class UnixFileStream : public Stream {
   bool CanWrite() override;
   Index Write(const std::byte* buffer, Index offset, Index size) override;
 
-  void Flush() override;
-
   void Close() override;
 
  private:
diff --git a/src/common/io/MemoryStream.cpp b/src/common/io/MemoryStream.cpp
index e3c9c605..bd561f5d 100644
--- a/src/common/io/MemoryStream.cpp
+++ b/src/common/io/MemoryStream.cpp
@@ -49,6 +49,4 @@ Index MemoryStream::Write(const std::byte *buffer, Index offset, Index size) {
   position_ += size;
   return size;
 }
-
-void MemoryStream::Flush() {}
 }  // namespace cru::io
diff --git a/src/common/io/Stream.cpp b/src/common/io/Stream.cpp
index 1a39b653..7c30406f 100644
--- a/src/common/io/Stream.cpp
+++ b/src/common/io/Stream.cpp
@@ -19,5 +19,7 @@ Index Stream::Write(const std::byte* buffer, Index size) {
   return Write(buffer, 0, size);
 }
 
+void Stream::Flush() {}
+
 void Stream::Close() {}
 }  // namespace cru::io
diff --git a/src/common/io/UnixFileStream.cpp b/src/common/io/UnixFileStream.cpp
index 23c11dad..4fa61b7b 100644
--- a/src/common/io/UnixFileStream.cpp
+++ b/src/common/io/UnixFileStream.cpp
@@ -53,6 +53,8 @@ int MapSeekOrigin(Stream::SeekOrigin origin) {
 }
 }  // namespace
 
+UnixFileStream::~UnixFileStream() { Close(); }
+
 UnixFileStream::UnixFileStream(String path, OpenFileFlag flags) {
   file_descriptor_ = ::open(path.ToUtf8().c_str(), MapOpenFileFlag(flags));
   if (file_descriptor_ == -1) {