diff --git a/core/tasks/tools/package-modules.mk b/core/tasks/tools/package-modules.mk
index ef49d90..a643882 100644
--- a/core/tasks/tools/package-modules.mk
+++ b/core/tasks/tools/package-modules.mk
@@ -9,6 +9,7 @@
 #
 #
 
+my_makefile := $(lastword $(filter-out $(lastword $(MAKEFILE_LIST)),$(MAKEFILE_LIST)))
 my_staging_dir := $(call intermediates-dir-for,PACKAGING,$(my_package_name))
 my_built_modules :=
 my_copy_pairs :=
@@ -33,7 +34,7 @@
   $(eval _built_files := $(strip $(ALL_MODULES.$(m).BUILT_INSTALLED)\
     $(ALL_MODULES.$(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX).BUILT_INSTALLED)))\
   $(if $(_pickup_files)$(_built_files),,\
-    $(warning Unknown installed file for module '$(m)'))\
+    $(shell $(call echo-warning,$(my_makefile),$(my_package_name): Unknown installed file for module '$(m)')))\
   $(eval my_pickup_files += $(_pickup_files))\
   $(foreach i, $(_built_files),\
     $(eval bui_ins := $(subst :,$(space),$(i)))\