diff --git a/share/mk/bsd.crunchgen.mk b/share/mk/bsd.crunchgen.mk
index d8f07b1c48b1..cc7f02102642 100644
--- a/share/mk/bsd.crunchgen.mk
+++ b/share/mk/bsd.crunchgen.mk
@@ -48,7 +48,7 @@ CRUNCH_GENERATE_LINKS?=	yes
 CLEANFILES+= $(CONF) *.o *.lo *.c *.mk *.cache *.a *.h
 
 # Don't try to extract debug info from ${PROG}.
-NO_DEBUG_FILES=
+MK_DEBUG_FILES=no
 
 # Program names and their aliases contribute hardlinks to 'rescue' executable,
 # except for those that get suppressed.