diff --git a/language/control-structures.xml b/language/control-structures.xml
index 4d5b067c96..43c45935c2 100644
--- a/language/control-structures.xml
+++ b/language/control-structures.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.156 $ -->
+<!-- $Revision: 1.157 $ -->
  <chapter xml:id="language.control-structures" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
   <title>Control Structures</title>
 
@@ -416,7 +416,8 @@ for (expr1; expr2; expr3)
    <simpara>
     Each of the expressions can be empty or contain multiple
     expressions separated by commas. In <varname>expr2</varname>, all
-    expressions are evaluated but the result is taken from the last part.
+    expressions separated by a comma are evaluated but the result is taken
+    from the last part.
     <varname>expr2</varname> being empty means the loop should
     be run indefinitely (PHP implicitly considers it as
     &true;, like C).  This may not be as useless as