diff --git a/reference/memcached/memcached/flush.xml b/reference/memcached/memcached/flush.xml
index fe4670c9ed..896d945614 100644
--- a/reference/memcached/memcached/flush.xml
+++ b/reference/memcached/memcached/flush.xml
@@ -32,7 +32,7 @@
      <term><parameter>delay</parameter></term>
      <listitem>
       <para>
-       Numer of seconds to wait before invalidating the items.
+       Number of seconds to wait before invalidating the items.
       </para>
      </listitem>
     </varlistentry>