diff --git a/klausur-service/backend/cv_vocab_pipeline.py b/klausur-service/backend/cv_vocab_pipeline.py
index b25b94a..ddb570f 100644
--- a/klausur-service/backend/cv_vocab_pipeline.py
+++ b/klausur-service/backend/cv_vocab_pipeline.py
@@ -3057,8 +3057,9 @@ def build_cell_grid(
         logger.warning("build_cell_grid: no content rows found")
         return [], []
 
-    # Use all columns except column_ignore
-    relevant_cols = [c for c in column_regions if c.type != 'column_ignore']
+    # Use columns only — skip ignore, header, footer, page_ref
+    _skip_types = {'column_ignore', 'header', 'footer', 'page_ref'}
+    relevant_cols = [c for c in column_regions if c.type not in _skip_types]
     if not relevant_cols:
         logger.warning("build_cell_grid: no usable columns found")
         return [], []