diff --git a/reference/trader/functions/trader-ultosc.xml b/reference/trader/functions/trader-ultosc.xml
index 31e034f09f..29b5b008a0 100644
--- a/reference/trader/functions/trader-ultosc.xml
+++ b/reference/trader/functions/trader-ultosc.xml
@@ -54,7 +54,7 @@
     <term><parameter>timePeriod1</parameter></term>
     <listitem>
      <para>
-      
+      Number of bars for 1st period. Valid range from 1 to 100000.
      </para>
     </listitem>
    </varlistentry>
@@ -62,7 +62,7 @@
     <term><parameter>timePeriod2</parameter></term>
     <listitem>
      <para>
-      
+      Number of bars for 2nd period. Valid range from 1 to 100000.
      </para>
     </listitem>
    </varlistentry>
@@ -70,7 +70,7 @@
     <term><parameter>timePeriod3</parameter></term>
     <listitem>
      <para>
-      
+      Number of bars for 3rd period. Valid range from 1 to 100000.
      </para>
     </listitem>
    </varlistentry>