diff --git a/configs/mcu123-lpc214x/usbserial/defconfig b/configs/mcu123-lpc214x/usbserial/defconfig
index 3e325967ba..df434376bd 100644
--- a/configs/mcu123-lpc214x/usbserial/defconfig
+++ b/configs/mcu123-lpc214x/usbserial/defconfig
@@ -217,7 +217,7 @@ CONFIG_NOPRINTF_FIELDWIDTH=n
 # Allow for architecture optimized implementations
 #
 # The architecture can provide optimized versions of the
-# following to improve sysem performance
+# following to improve system performance
 #
 CONFIG_ARCH_MEMCPY=n
 CONFIG_ARCH_MEMCMP=n