diff --git a/.dockerignore b/.dockerignore
index 7ead48db7c..9fafc2e4ba 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -14,6 +14,7 @@
 !compute/
 !compute_tools/
 !control_plane/
+!docker-compose/ext-src
 !libs/
 !pageserver/
 !pgxn/
diff --git a/compute/compute-node.Dockerfile b/compute/compute-node.Dockerfile
index a74291fdb4..0cdb44853f 100644
--- a/compute/compute-node.Dockerfile
+++ b/compute/compute-node.Dockerfile
@@ -1818,7 +1818,7 @@ RUN make PG_VERSION="${PG_VERSION:?}" -C compute
 
 FROM pg-build AS extension-tests
 ARG PG_VERSION
-RUN mkdir /ext-src
+COPY docker-compose/ext-src/ /ext-src/
 
 COPY --from=pg-build /postgres /postgres
 #COPY --from=postgis-src /ext-src/ /ext-src/
diff --git a/docker-compose/docker_compose_test.sh b/docker-compose/docker_compose_test.sh
index 5b3cfc74eb..0f03d600a3 100755
--- a/docker-compose/docker_compose_test.sh
+++ b/docker-compose/docker_compose_test.sh
@@ -51,8 +51,6 @@ for pg_version in ${TEST_VERSION_ONLY-14 15 16 17}; do
     done
 
     if [ $pg_version -ge 16 ]; then
-        docker cp ext-src $TEST_CONTAINER_NAME:/
-        docker exec $TEST_CONTAINER_NAME bash -c "apt update && apt install -y libtap-parser-sourcehandler-pgtap-perl"
         # This is required for the pg_hint_plan test, to prevent flaky log message causing the test to fail
         # It cannot be moved to Dockerfile now because the database directory is created after the start of the container
         echo Adding dummy config
diff --git a/docker-compose/test_extensions_upgrade.sh b/docker-compose/test_extensions_upgrade.sh
index 06d351b496..c2168c47af 100755
--- a/docker-compose/test_extensions_upgrade.sh
+++ b/docker-compose/test_extensions_upgrade.sh
@@ -57,7 +57,6 @@ new_vers=$(docker compose exec neon-test-extensions psql -Aqt -d contrib_regress
 docker compose --profile test-extensions down
 TAG=${OLDTAG} docker compose --profile test-extensions up --quiet-pull --build -d --force-recreate
 wait_for_ready
-docker compose cp  ext-src neon-test-extensions:/
 docker compose exec neon-test-extensions psql -c "DROP DATABASE IF EXISTS contrib_regression"
 docker compose exec neon-test-extensions psql -c "CREATE DATABASE contrib_regression"
 docker compose exec neon-test-extensions psql -c "CREATE DATABASE pgtap_regression"