diff --git a/language/operators.xml b/language/operators.xml
index de6a40a8e1..d091b1144b 100644
--- a/language/operators.xml
+++ b/language/operators.xml
@@ -1520,7 +1520,8 @@ echo "<pre>$output</pre>";
    </para>
    <note>
     <simpara>
-     The increment/decrement operators do not affect boolean values.
+     The increment/decrement operators only affect numbers and strings.
+     Arrays, objects and resources are not affected.
      Decrementing &null; values has no effect too, but incrementing them
      results in <literal>1</literal>.
     </simpara>