diff --git a/backend/categorisation/handler/Dockerfile b/backend/categorisation/handler/Dockerfile
index dbb6c827..f0828e35 100644
--- a/backend/categorisation/handler/Dockerfile
+++ b/backend/categorisation/handler/Dockerfile
@@ -31,6 +31,7 @@ RUN pip install --no-cache-dir -r requirements.txt
 COPY utils/ utils/
 COPY backend/categorisation/ backend/categorisation/
 COPY backend/app/db/ backend/app/db/
+COPY backend/app/domain/ backend/app/domain/
 COPY backend/addresses/ backend/addresses/
 COPY datatypes/ datatypes/