diff --git a/feedleware/openalex/openalex.py b/feedleware/openalex/openalex.py
index 153e251..447bd6a 100644
--- a/feedleware/openalex/openalex.py
+++ b/feedleware/openalex/openalex.py
@@ -125,6 +125,7 @@ class APIClient:
             authors = [
                 authorship["author"]["display_name"]
                 for authorship in work["authorships"]
+                if authorship["author"]["display_name"] is not None
             ]
 
             if work["abstract_inverted_index"] is not None: