diff --git a/Language/Functions/Communication/Serial/readBytesUntil.adoc b/Language/Functions/Communication/Serial/readBytesUntil.adoc
index 103ea47d7..efe33829b 100644
--- a/Language/Functions/Communication/Serial/readBytesUntil.adoc
+++ b/Language/Functions/Communication/Serial/readBytesUntil.adoc
@@ -31,7 +31,7 @@ Serial.readBytesUntil() reads characters from the serial buffer into an array. T
 === Parameters
 `_Serial_`: serial port object. See the list of available serial ports for each board on the link:../../serial[Serial main page]. +
 `character`: the character to search for. Allowed data types: `char`. +
-`buffer`: the buffer to store the bytes in. Allowed data types: array of `char` or `byte`s. +
+`buffer`: the buffer to store the bytes in. Allowed data types: array of `char` or `byte`. +
 `length`: the number of bytes to read. Allowed data types: `int`.