diff --git a/doc/prd.html b/doc/prd.html
index 6e85a90e23..3918f11c25 100644
--- a/doc/prd.html
+++ b/doc/prd.html
@@ -49,7 +49,7 @@
 <P><B>Examples:</B>
 </P>
 <PRE>prd 5000 100 10 10 100 1 54982
-prd 5000 100 10 10 100 1 54982 maxiter 100 
+prd 5000 100 10 10 100 1 54982 min 0.1 0.1 100 200 
 </PRE>
 <P><B>Description:</B>
 </P>
diff --git a/doc/prd.txt b/doc/prd.txt
index 5d342b6411..bb93da0ed4 100644
--- a/doc/prd.txt
+++ b/doc/prd.txt
@@ -36,7 +36,7 @@ keyword = {min} or {temp} or {vel} :l
 [Examples:]
 
 prd 5000 100 10 10 100 1 54982
-prd 5000 100 10 10 100 1 54982 maxiter 100 :pre
+prd 5000 100 10 10 100 1 54982 min 0.1 0.1 100 200 :pre
 
 [Description:]