diff --git a/reference/filesystem/functions/file-get-contents.xml b/reference/filesystem/functions/file-get-contents.xml
index cf4415bafa..e2cdfc8422 100644
--- a/reference/filesystem/functions/file-get-contents.xml
+++ b/reference/filesystem/functions/file-get-contents.xml
@@ -137,7 +137,7 @@
      <term><parameter>offset</parameter></term>
      <listitem>
       <para>
-       The offset where the reading starts.
+       The offset where the reading starts on the original stream.
       </para>
      </listitem>
     </varlistentry>
@@ -146,7 +146,8 @@
      <listitem>
       <para>
        Maximum length of data read. The default is to read until end
-       of file is reached.
+       of file is reached. Note that this parameter is applied to the 
+       stream processed by the filters.
       </para>
      </listitem>
     </varlistentry>