diff --git a/score/test/component/BUILD b/score/test/component/BUILD
index dc443e6a..e00a9ca8 100644
--- a/score/test/component/BUILD
+++ b/score/test/component/BUILD
@@ -33,9 +33,7 @@ pkg_tar(
 
 pkg_tar(
     name = "_datarouter_conf_pkg",
-    srcs = ["//score/test/component/datarouter:datarouter_test_config_files"],
-    package_dir = "opt/datarouter",
-    strip_prefix = "/score/test/component/datarouter",
+    srcs = ["//score/test/component/datarouter:datarouter_docker_config_pkg"],
     target_compatible_with = ["@platforms//os:linux"],
 )
 
diff --git a/score/test/component/datarouter/BUILD b/score/test/component/datarouter/BUILD
index fab77b03..798592fb 100644
--- a/score/test/component/datarouter/BUILD
+++ b/score/test/component/datarouter/BUILD
@@ -12,7 +12,7 @@
 # *******************************************************************************
 
 load("@rules_cc//cc:cc_binary.bzl", "cc_binary")
-load("@rules_pkg//pkg:mappings.bzl", "pkg_attributes", "pkg_filegroup", "pkg_files")
+load("@rules_pkg//pkg:mappings.bzl", "pkg_attributes", "pkg_filegroup", "pkg_files", "strip_prefix")
 load("@rules_pkg//pkg:tar.bzl", "pkg_tar")
 load("//score/test/component:defs.bzl", "py_logging_itf_test")
 
@@ -95,6 +95,19 @@ pkg_files(
     visibility = ["//score/test/component:__subpackages__"],
 )
 
+# Docker image config. Package-relative strip so the etc/ files resolve to
+# opt/datarouter/etc/* whether score_logging is built as the root module or
+# consumed as an external dependency (an absolute strip_prefix only matches
+# when logging is root and silently leaves the external/score_logging+/ prefix
+# otherwise).
+pkg_files(
+    name = "datarouter_docker_config_pkg",
+    srcs = [":datarouter_test_config_files"],
+    prefix = "opt/datarouter",
+    strip_prefix = strip_prefix.from_pkg(),
+    visibility = ["//score/test/component:__subpackages__"],
+)
+
 py_logging_itf_test(
     name = "test_datarouter_filters",
     srcs = ["test_datarouter_filters.py"],