diff --git a/docker/Dockerfile b/docker/Dockerfile
index 3071a53172c2151fa33636a774ec34a3d643ef81..fa682b4dc844942a5c64077e7e6075a78d4c8a43 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -28,6 +28,7 @@ COPY . .
 # build duniter
 ARG threads=1
 RUN source ~/.cargo/env && \
+	CARGO_PROFILE_RELEASE_LTO="true" \
 	RUSTFLAGS="-C target-feature=-crt-static" \
 		cargo build --release -j $threads