diff --git a/src/content.ts b/src/content.ts
index 8413b76b..504ba8d5 100644
--- a/src/content.ts
+++ b/src/content.ts
@@ -2278,7 +2278,8 @@ async function sendSubmitMessage(): Promise<boolean> {
     if (!previewedSegment 
             && !sponsorTimesSubmitting.every((segment) => 
                 [ActionType.Full, ActionType.Chapter, ActionType.Poi].includes(segment.actionType) 
-                    || segment.segment[1] >= getVideo()?.duration)) {
+                    || segment.segment[1] >= getVideo()?.duration
+                    || segment.segment[0] === 0)) {
         alert(`${chrome.i18n.getMessage("previewSegmentRequired")} ${keybindToString(Config.config.previewKeybind)}`);
         return false;
     }