diff --git a/src/rp2_common/pico_stdio/include/pico/stdio.h b/src/rp2_common/pico_stdio/include/pico/stdio.h
index a895875..9f01ae9 100644
--- a/src/rp2_common/pico_stdio/include/pico/stdio.h
+++ b/src/rp2_common/pico_stdio/include/pico/stdio.h
@@ -47,7 +47,7 @@ typedef struct stdio_driver stdio_driver_t;
  * \ingroup pico_stdio
  *
  * Call this method once you have set up your clocks to enable the stdio support for UART, USB
- * and semihosting based on the presence of the respective librariess in the binary.
+ * and semihosting based on the presence of the respective libraries in the binary.
  *
  * \see stdio_uart, stdio_usb, stdio_semihosting
  */
@@ -57,7 +57,7 @@ void stdio_init_all(void);
  * \ingroup pico_stdio
  *
  * Call this method once you have set up your clocks to enable the stdio support for UART, USB
- * and semihosting based on the presence of the respective librariess in the binary.
+ * and semihosting based on the presence of the respective libraries in the binary.
  *
  * \see stdio_uart, stdio_usb, stdio_semihosting
  */