-MAKEFILE_TEMPLATES += ./doctest.sd.mk
-MAKEFILE_TEMPLATES += ./sub/dir/Subdir.sd.mk
-MAKEFILE_TEMPLATES += ./sub/dir/doctest.sd.mk
+MAKEFILE_TEMPLATES += ./doctests.sd.mk
+MAKEFILE_TEMPLATES += ./sub/dir/Dir.sd.mk
+MAKEFILE_TEMPLATES += ./sub/dir/doctests.sd.mk