diff --git a/Dockerfile b/Dockerfile
index 08159bc..4a8679d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,8 +2,9 @@
 FROM rust:1-bookworm AS builder
 WORKDIR /build
 COPY Cargo.toml Cargo.lock ./
+RUN mkdir src && echo 'fn main() {}' > src/main.rs && cargo build --release && rm -rf src
 COPY src/ src/
-RUN cargo build --release
+RUN touch src/main.rs && cargo build --release
 
 # --- Runtime stage ---
 FROM debian:bookworm-slim