diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4094786..e326a10 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Sphinx documentation.
 - Unit tests for testing `SetTimeout()`.
 
+### Fixed
+- Serial port state is set to `CLOSED` on initialization.
+
 ## [v2.0.1] - 2017-11-27
 
 ### Fixed
diff --git a/src/SerialPort.cpp b/src/SerialPort.cpp
index c80a831..9bf0aca 100644
--- a/src/SerialPort.cpp
+++ b/src/SerialPort.cpp
@@ -31,6 +31,7 @@ namespace CppLinuxSerial {
         baudRate_ = defaultBaudRate_;
         readBufferSize_B_ = defaultReadBufferSize_B_;
         readBuffer_.reserve(readBufferSize_B_);
+		state_ = State::CLOSED;
 	}
 
 	SerialPort::SerialPort(const std::string& device, BaudRate baudRate) :