diff --git a/Documentation/DocBook/regulator.tmpl b/Documentation/DocBook/regulator.tmpl
index 53f4f8d..346e552 100644
--- a/Documentation/DocBook/regulator.tmpl
+++ b/Documentation/DocBook/regulator.tmpl
@@ -267,8 +267,8 @@
      <sect1 id="machine-constraint">
        <title>Constraints</title>
        <para>
-	 As well as definining the connections the machine interface
-	 also provides constraints definining the operations that
+	 As well as defining the connections the machine interface
+	 also provides constraints defining the operations that
 	 clients are allowed to perform and the parameters that may be
 	 set.  This is required since generally regulator devices will
 	 offer more flexibility than it is safe to use on a given