diff --git a/Dockerfile b/Dockerfile
index 6c38785..6627d2c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,13 +14,15 @@ RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
 
 # 1. Copy manifests to cache dependencies
 COPY Cargo.toml Cargo.lock ./
-# Create dummy main.rs to build dependencies
-RUN mkdir src && echo "fn main() {}" > src/main.rs
+# Create dummy targets declared in Cargo.toml so manifest parsing succeeds.
+RUN mkdir -p src benches \
+    && echo "fn main() {}" > src/main.rs \
+    && echo "fn main() {}" > benches/agent_benchmarks.rs
 RUN --mount=type=cache,id=zeroclaw-cargo-registry,target=/usr/local/cargo/registry,sharing=locked \
     --mount=type=cache,id=zeroclaw-cargo-git,target=/usr/local/cargo/git,sharing=locked \
     --mount=type=cache,id=zeroclaw-target,target=/app/target,sharing=locked \
     cargo build --release --locked
-RUN rm -rf src
+RUN rm -rf src benches
 
 # 2. Copy source code
 COPY . .