diff --git a/datasources/douyin/search_douyin.py b/datasources/douyin/search_douyin.py
index e66b177ff..4b5d5b814 100644
--- a/datasources/douyin/search_douyin.py
+++ b/datasources/douyin/search_douyin.py
@@ -18,7 +18,7 @@ class SearchDouyin(Search):
     title = "Import scraped Douyin data"  # title displayed in UI
     description = "Import Douyin data collected with an external tool such as Zeeschuimer."  # description displayed in UI
     extension = "ndjson"  # extension of result file, used internally and in UI
-    is_from_extension = True
+    is_from_zeeschuimer = True
 
     # not available as a processor for existing datasets
     accepts = [None]
diff --git a/datasources/tiktok/search_tiktok.py b/datasources/tiktok/search_tiktok.py
index 90f443b49..2ee3c66bd 100644
--- a/datasources/tiktok/search_tiktok.py
+++ b/datasources/tiktok/search_tiktok.py
@@ -20,7 +20,7 @@ class SearchTikTok(Search):
     title = "Import scraped Tiktok data"  # title displayed in UI
     description = "Import Tiktok data collected with an external tool such as Zeeschuimer."  # description displayed in UI
     extension = "ndjson"  # extension of result file, used internally and in UI
-    is_from_extension = True
+    is_from_zeeschuimer = True
 
     # not available as a processor for existing datasets
     accepts = [None]