diff --git a/streamlit_app.py b/streamlit_app.py
index fa8a7c2..c586237 100644
--- a/streamlit_app.py
+++ b/streamlit_app.py
@@ -188,7 +188,7 @@ def get_file_hash(fname):
             annotations = list(filter(lambda a: a['type'] != 'figure', annotations))
 
         if not highlight_affiliations:
-            annotations = list(filter(lambda a: a['type'] != '', annotations))
+            annotations = list(filter(lambda a: a['type'] != 'affiliation', annotations))
 
         pdf_viewer(
             input=st.session_state['binary'],