diff --git a/klausur-service/backend/ocr_pipeline_api.py b/klausur-service/backend/ocr_pipeline_api.py
index a079ee1..0a18d9b 100644
--- a/klausur-service/backend/ocr_pipeline_api.py
+++ b/klausur-service/backend/ocr_pipeline_api.py
@@ -3537,7 +3537,9 @@ async def paddle_kombi(session_id: str):
         cropped_png=img_png,
         current_step=8,
     )
-    cached["word_result"] = word_result
+    # Update in-memory cache so detect-structure can access word_result
+    if session_id in _cache:
+        _cache[session_id]["word_result"] = word_result
 
     logger.info(
         "paddle_kombi session %s: %d cells (%d rows, %d cols) in %.2fs "
@@ -3674,7 +3676,9 @@ async def rapid_kombi(session_id: str):
         cropped_png=img_png,
         current_step=8,
     )
-    cached["word_result"] = word_result
+    # Update in-memory cache so detect-structure can access word_result
+    if session_id in _cache:
+        _cache[session_id]["word_result"] = word_result
 
     logger.info(
         "rapid_kombi session %s: %d cells (%d rows, %d cols) in %.2fs "