diff --git a/Dockerfile.railway b/Dockerfile.railway
index 0e050ec..ede0d2f 100644
--- a/Dockerfile.railway
+++ b/Dockerfile.railway
@@ -9,7 +9,7 @@ WORKDIR /app
 RUN apk add --no-cache python3 make g++ && \
     rm -rf /var/cache/apk/*
 
-# Copy package files
+# Copy package files and tsconfig
 COPY package*.json tsconfig.json ./
 
 # Install all dependencies (including devDependencies for build)