diff --git a/backend/postcode_splitter/handler/Dockerfile b/backend/postcode_splitter/handler/Dockerfile
index f8196297..ae9056ed 100644
--- a/backend/postcode_splitter/handler/Dockerfile
+++ b/backend/postcode_splitter/handler/Dockerfile
@@ -9,6 +9,12 @@ RUN pip install --no-cache-dir -r requirements.txt
 
 COPY utils/ utils/
 COPY backend/postcode_splitter/main.py .
+
+COPY utils/ utils/
+COPY backend/ backend/
+
+COPY backend/__init__.py backend/__init__.py
+
 # # -----------------------------
 # # Lambda handler
 # # -----------------------------