diff --git a/karaoke-adjust-1sec.lua b/karaoke-adjust-1sec.lua
index df1b0e3..4ba4867 100644
--- a/karaoke-adjust-1sec.lua
+++ b/karaoke-adjust-1sec.lua
@@ -111,7 +111,7 @@ function mugenizer(subs)
             styles = styles + 1
         end
 
-        if line.class == "dialogue" then
+        if line.class == "dialogue" and not line.comment then
             if first == nil then
                 first = i
             end