diff --git a/rename_regions_from_markers.lua b/rename_regions_from_markers.lua
index 9d46706..f8ffe08 100644
--- a/rename_regions_from_markers.lua
+++ b/rename_regions_from_markers.lua
@@ -11,26 +11,26 @@ function factory()
     -- corresponding to a [selected] region
     function find_track_for_region(region_id)
         for route in Session:get_tracks():iter() do
-            local track = route:to_track();
-            local pl = track:playlist ()
+            local track = route:to_track()
+            local pl = track:playlist()
             if not pl:region_by_id(region_id):isnil() then
                 return track
             end
         end
-        assert (0) -- can't happen, region must be in a playlist
+        assert(0)  -- can't happen, region must be in a playlist
     end
 
     return function()
-        local sel = Editor:get_selection () -- get current selection
+        local sel = Editor:get_selection()  -- get current selection
         local loc = Session:locations()     -- get locations
 
         -- prepare undo operation
-        Session:begin_reversible_command ("Rename regions from markers")
+        Session:begin_reversible_command("Rename regions from markers")
 
         -- for each selected region...
-        for region in sel.regions:regionlist():iter () do
+        for region in sel.regions:regionlist():iter() do
             -- test if it's an audio region
-            local ar = region:to_audioregion ()
+            local ar = region:to_audioregion()
             if ar:isnil() then
                 goto next
             end