diff --git a/doc/reference.qbk b/doc/reference.qbk
index 27bcb46b..4bd04312 100644
--- a/doc/reference.qbk
+++ b/doc/reference.qbk
@@ -22438,7 +22438,7 @@ This function is used to get the current value of an option on the serial port.
   
 [[option][The option value to be obtained from the serial port.]]
 
-[[ec][Set to indicate what error occured, if any.]]
+[[ec][Set to indicate what error occurred, if any.]]
 
 ]
 
diff --git a/include/boost/asio/basic_serial_port.hpp b/include/boost/asio/basic_serial_port.hpp
index e0f83b0a..d318963a 100644
--- a/include/boost/asio/basic_serial_port.hpp
+++ b/include/boost/asio/basic_serial_port.hpp
@@ -445,7 +445,7 @@ class basic_serial_port
    *
    * @param option The option value to be obtained from the serial port.
    *
-   * @param ec Set to indicate what error occured, if any.
+   * @param ec Set to indicate what error occurred, if any.
    *
    * @sa GettableSerialPortOption @n
    * boost::asio::serial_port_base::baud_rate @n