diff --git a/boards/forms/__init__.py b/boards/forms/__init__.py
--- a/boards/forms/__init__.py
+++ b/boards/forms/__init__.py
@@ -28,7 +28,7 @@ from boards.models.attachment import Sti
 from boards.models.attachment.downloaders import download, REGEX_MAGNET
 from boards.models.post import TITLE_MAX_LENGTH
 from boards.utils import validate_file_size, get_file_mimetype, \
-    FILE_EXTENSION_DELIMITER
+    FILE_EXTENSION_DELIMITER, get_tripcode_from_text
 from boards.models.attachment.viewers import FILE_TYPES_IMAGE
 from neboard import settings
 
@@ -286,8 +286,7 @@ class PostForm(NeboardForm):
     def get_tripcode(self):
         title = self.cleaned_data['title']
         if title is not None and TRIPCODE_DELIM in title:
-            code = title.split(TRIPCODE_DELIM, maxsplit=1)[1] + neboard.settings.SECRET_KEY
-            tripcode = hashlib.md5(code.encode()).hexdigest()
+            tripcode = get_tripcode_from_text(title.split(TRIPCODE_DELIM, maxsplit=1)[1])
         else:
             tripcode = ''
         return tripcode
diff --git a/boards/models/source.py b/boards/models/source.py
--- a/boards/models/source.py
+++ b/boards/models/source.py
@@ -9,8 +9,11 @@ from django.db import models, transactio
 from django.utils.dateparse import parse_datetime
 from django.utils.timezone import utc
 from django.utils import timezone
+
 from boards.models import Post
 from boards.models.post import TITLE_MAX_LENGTH
+from boards.utils import get_tripcode_from_text
+from boards import settings
 
 
 SOURCE_TYPE_MAX_LENGTH = 100
@@ -42,6 +45,8 @@ class ThreadSource(models.Model):
         if self.thread.is_archived():
             logger.error('The thread {} is archived, please try another one'.format(self.thread))
         else:
+            tripcode = get_tripcode_from_text(
+                    settings.get('External', 'SourceFetcherTripcode'))
             start_timestamp = self.timestamp
             last_timestamp = start_timestamp
             logger.info('Start timestamp is {}'.format(start_timestamp))
@@ -59,7 +64,8 @@ class ThreadSource(models.Model):
                         if timestamp > last_timestamp:
                             last_timestamp = timestamp
                         if timestamp > start_timestamp:
-                            Post.objects.create_post(title=title, text=item.description, thread=self.thread, file_urls=[item.link])
+                            Post.objects.create_post(title=title, text=item.description,
+                                    thread=self.thread, file_urls=[item.link], tripcode=tripcode)
                             logger.info('Fetched item {} from {} into thread {}'.format(
                                 title, self.name, self.thread))
             logger.info('New timestamp is {}'.format(last_timestamp))
diff --git a/boards/utils.py b/boards/utils.py
--- a/boards/utils.py
+++ b/boards/utils.py
@@ -15,6 +15,7 @@ from django.utils import timezone
 from django.utils.translation import ugettext_lazy as _
 
 import boards
+from neboard import settings
 from boards.abstracts.constants import FILE_DIRECTORY
 from boards.settings import get_bool
 
@@ -141,3 +142,11 @@ def get_domain(url: str) -> str:
 
     return full_domain
 
+
+def get_tripcode_from_text(text: str) -> str:
+    tripcode = ''
+    if text:
+        code = text + settings.SECRET_KEY
+        tripcode = hashlib.md5(code.encode()).hexdigest()
+    return tripcode
+