diff --git a/worker/Dockerfile b/worker/Dockerfile
index 8bc1dab..84bc4cf 100644
--- a/worker/Dockerfile
+++ b/worker/Dockerfile
@@ -9,6 +9,9 @@ WORKDIR /usr/src/app
 COPY package.json package-lock.json ./
 RUN npm ci --production --silent && npm install tsx dotenv --silent
 
+# Copy tsconfig for path mapping resolution (@/ alias)
+COPY tsconfig.json ./
+
 # Copy worker code and shared lib
 COPY worker ./worker
 COPY lib ./lib