diff --git a/doc/hg.1.txt b/doc/hg.1.txt
--- a/doc/hg.1.txt
+++ b/doc/hg.1.txt
@@ -167,7 +167,7 @@ import [-p <n> -b <base> -q] <patches>::
 init::
     Initialize a new repository in the current directory.
 
-log [file]::
+log [-r revision ...] [file]::
     Print the revision history of the specified file or the entire project.
 
     By default this command outputs: changeset id and hash, tags,
@@ -175,6 +175,11 @@ log [file]::
     -v switch adds some more detail, such as changed files, manifest
     hashes or message signatures.
 
+    When a revision argument is given, only this file or changelog revision
+    is displayed. With two revision arguments all revisions in this range
+    are listed. Additional revision arguments may be given repeating the above
+    cycle.
+
     aliases: history
 
 manifest [revision]::