Index: Makefile.inc1
===================================================================
--- Makefile.inc1
+++ Makefile.inc1
@@ -1354,7 +1354,7 @@
 
 DEBUG_DISTRIBUTIONS=
 .if ${MK_DEBUG_FILES} != "no"
-DEBUG_DISTRIBUTIONS+=	base ${EXTRA_DISTRIBUTIONS:S,tests,,}
+DEBUG_DISTRIBUTIONS+=	base ${EXTRA_DISTRIBUTIONS}
 .endif
 
 MTREE_MAGIC?=	mtree 2.0