diff --git a/.dockerignore b/.dockerignore
index 49810fc35b..352336496f 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -11,4 +11,8 @@ test_output
 .vscode
 .zenith
 integration_tests/.zenith
-.mypy_cache
\ No newline at end of file
+.mypy_cache
+
+Dockerfile
+.dockerignore
+
diff --git a/Dockerfile b/Dockerfile
index 5747438272..b38bac4480 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,6 +10,7 @@ FROM zenithdb/build:buster AS pg-build
 WORKDIR /zenith
 COPY ./vendor/postgres vendor/postgres
 COPY ./Makefile Makefile
+ENV BUILD_TYPE release
 RUN make -j $(getconf _NPROCESSORS_ONLN) -s postgres
 RUN rm -rf postgres_install/build