diff --git a/main.py b/main.py
index c41fc89..7f55595 100644
--- a/main.py
+++ b/main.py
@@ -3,6 +3,7 @@ import shutil
 
 from dotenv import load_dotenv
 
+import reddit.subreddit
 from reddit.subreddit import get_subreddit_threads
 from video_creation.background import download_background, chop_background_video
 from video_creation.voices import save_text_to_mp3
@@ -62,6 +63,10 @@ def main(subreddit_=None, background=None, filename=None, thread_link_=None):
         download_background(background)
         chop_background_video(length)
         make_final_video(number_of_comments, filename)
+
+        with open("created_videos", "a", encoding="utf-8") as video_lists:
+            video_lists.write(reddit.subreddit.submission.title)
+
         return True
 
     print_substep(
diff --git a/reddit/subreddit.py b/reddit/subreddit.py
index 09e19fa..4813af6 100644
--- a/reddit/subreddit.py
+++ b/reddit/subreddit.py
@@ -65,27 +65,40 @@ def get_subreddit_threads(subreddit_, thread_link_):
 
     # If the user specifies that he doesnt want a random thread, or if
     # he doesn't insert the "RANDOM_THREAD" variable at all, ask the thread link
-    if thread_link_ is not None:
-        thread_link = thread_link_
-        print_step("Getting the inserted thread...")
-        submission = reddit.submission(url=thread_link)
-    else:
-        try:
-            if subreddit_ is None:
-                raise ValueError
-
-            subreddit = reddit.subreddit(subreddit_)
-        except ValueError:
-            if os.getenv("SUBREDDIT"):
-                subreddit = reddit.subreddit(
-                    re.sub(r"r\/", "", os.getenv("SUBREDDIT").strip())
-                )
-            else:
-                subreddit = reddit.subreddit("askreddit")
-                print_substep("Subreddit not defined. Using AskReddit.")
-
-        threads = subreddit.hot(limit=25)
-        submission = list(threads)[random.randrange(0, 25)]
+    while True:
+        with open("created_videos", "r", encoding="utf-8") as reference:
+            videos = list(reference.readlines())
+
+        if thread_link_ is not None:
+            thread_link = thread_link_
+            print_step("Getting the inserted thread...")
+            submission = reddit.submission(url=thread_link)
+        else:
+            try:
+                if subreddit_ is None:
+                    raise ValueError
+
+                subreddit = reddit.subreddit(subreddit_)
+            except ValueError:
+                if os.getenv("SUBREDDIT"):
+                    subreddit = reddit.subreddit(
+                        re.sub(r"r\/", "", os.getenv("SUBREDDIT").strip())
+                    )
+                else:
+                    subreddit = reddit.subreddit("askreddit")
+                    print_substep("Subreddit not defined. Using AskReddit.")
+
+            threads = subreddit.hot(limit=25)
+            submission = list(threads)[random.randrange(0, 25)]
+
+        if submission.title in videos:
+            print_substep(
+                "[bold]There is already a video for thread: [cyan]"
+                + f"{submission.title}[/cyan]. Finding another one.[/bold]"
+            )
+            continue
+
+        break
 
     print_substep(f"Video will be: [cyan]{submission.title}[/cyan] :thumbsup:")