diff --git a/reference/strings/functions/substr.xml b/reference/strings/functions/substr.xml
index 2f72222d9a1a..321b546b133a 100644
--- a/reference/strings/functions/substr.xml
+++ b/reference/strings/functions/substr.xml
@@ -80,10 +80,8 @@ echo substr("abcdef", -3, 1), PHP_EOL; // returns "d"
       </para>
       <para>
        If <parameter>length</parameter> is given and is negative, then that many
-       characters will be omitted from the end of <parameter>string</parameter>
-       (after the start position has been calculated when a
-       <parameter>offset</parameter> is negative).  If
-       <parameter>offset</parameter> denotes the position of this truncation or
+       characters will be omitted from the end of <parameter>string</parameter>.
+       If <parameter>offset</parameter> denotes the position of this truncation or
        beyond, an empty string will be returned.
       </para>
       <para>