diff --git a/Makefile.inc1 b/Makefile.inc1
index d0be65b76f06..07e43018852d 100644
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -1018,7 +1018,8 @@ _yacc=		usr.bin/yacc
 _awk=		usr.bin/awk
 .endif
 
-.if ${BOOTSTRAPPING} < 700018
+.if ${MK_BSNMP} != "no" && \
+    (${BOOTSTRAPPING} < 700018 || !exists(/usr/sbin/gensnmptree))
 _gensnmptree=	usr.sbin/bsnmpd/gensnmptree
 .endif