diff --git a/io/nativefilestream.cpp b/io/nativefilestream.cpp
index 8bc0871..d60894a 100644
--- a/io/nativefilestream.cpp
+++ b/io/nativefilestream.cpp
@@ -188,9 +188,8 @@ void NativeFileStream::open(const string &path, ios_base::openmode openMode)
  * \todo
  * - Maybe use setstate() instead of throwing exceptions directly for consistent error handling
  *   with std::fstream::open(). However, that makes passing specific error messages difficult.
- * - Rename to open() in v5.
  */
-void NativeFileStream::openFromFileDescriptor(int fileDescriptor, ios_base::openmode openMode)
+void NativeFileStream::open(int fileDescriptor, ios_base::openmode openMode)
 {
     setFileBuffer(makeFileBuffer(fileDescriptor, openMode));
 }
@@ -261,7 +260,7 @@ std::unique_ptr<std::basic_streambuf<char>> NativeFileStream::makeFileBuffer(con
 }
 
 /*!
- * \brief Internally called by openFromFileDescriptor().
+ * \brief Internally called by open().
  */
 std::unique_ptr<std::basic_streambuf<char>> NativeFileStream::makeFileBuffer(int fileDescriptor, ios_base::openmode openMode)
 {
diff --git a/io/nativefilestream.h b/io/nativefilestream.h
index 4b24ce7..849c2f5 100644
--- a/io/nativefilestream.h
+++ b/io/nativefilestream.h
@@ -26,7 +26,7 @@ public:
 
     bool is_open() const;
     void open(const std::string &path, std::ios_base::openmode openMode);
-    void openFromFileDescriptor(int fileDescriptor, std::ios_base::openmode openMode);
+    void open(int fileDescriptor, std::ios_base::openmode openMode);
     void close();
 
     static std::unique_ptr<std::basic_streambuf<char>> makeFileBuffer(const std::string &path, ios_base::openmode openMode);
@@ -50,7 +50,7 @@ inline NativeFileStream::NativeFileStream(const std::string &path, ios_base::ope
 inline NativeFileStream::NativeFileStream(int fileDescriptor, ios_base::openmode openMode)
     : NativeFileStream()
 {
-    openFromFileDescriptor(fileDescriptor, openMode);
+    open(fileDescriptor, openMode);
 }
 
 #else // CPP_UTILITIES_USE_NATIVE_FILE_BUFFER
diff --git a/tests/iotests.cpp b/tests/iotests.cpp
index ca991f6..bb8e3a6 100644
--- a/tests/iotests.cpp
+++ b/tests/iotests.cpp
@@ -516,7 +516,7 @@ void IoTests::testNativeFileStream()
 #ifndef PLATFORM_WINDOWS
     auto readWriteFileDescriptor = open(txtFilePath.data(), O_RDWR);
     CPPUNIT_ASSERT(readWriteFileDescriptor);
-    fileStream.openFromFileDescriptor(readWriteFileDescriptor, ios_base::in | ios_base::out | ios_base::binary);
+    fileStream.open(readWriteFileDescriptor, ios_base::in | ios_base::out | ios_base::binary);
     CPPUNIT_ASSERT(fileStream.is_open());
     CPPUNIT_ASSERT_EQUAL(static_cast<char>(fileStream.get()), 'f');
     fileStream.seekg(0, ios_base::end);
@@ -526,7 +526,7 @@ void IoTests::testNativeFileStream()
     CPPUNIT_ASSERT(!fileStream.is_open());
 #endif
     try {
-        fileStream.openFromFileDescriptor(-1, ios_base::in | ios_base::out | ios_base::binary);
+        fileStream.open(-1, ios_base::in | ios_base::out | ios_base::binary);
         fileStream.get();
         CPPUNIT_FAIL("expected exception");
     } catch (...) {
@@ -564,7 +564,7 @@ void IoTests::testNativeFileStream()
     const auto appendFileHandle = fopen(txtFilePath.data(), "a");
 #endif
     CPPUNIT_ASSERT(appendFileHandle);
-    fileStream2.openFromFileDescriptor(fileno(appendFileHandle), ios_base::out | ios_base::app);
+    fileStream2.open(fileno(appendFileHandle), ios_base::out | ios_base::app);
     CPPUNIT_ASSERT(fileStream2.is_open());
     fileStream2 << "foo";
     fileStream2.close();