--- a/utility_commands.py
+++ b/utility_commands.py
@@ -35,7 +35,12 @@ def print_parent_revision(ui, repo, hg_r
 
 @util.register_subcommand('rebase')
 def rebase_commits(ui, repo, hg_repo_path, **opts):
-    """Rebases the current uncommitted revisions onto the top of the branch.
+    """Rebases the current unpushed revisions onto the top of the Subversion branch.
+    
+    This moves a line of development from making its own head to the top of 
+    Subversion development, linearizing the changes. In order to make sure you
+    rebase on top of the current top of Subversion work, you should probably run
+    'hg svn pull' before running this.
     """
     hge = hg_delta_editor.HgChangeReceiver(hg_repo_path,
                                            ui_=ui)