diff --git a/Makefile.inc1 b/Makefile.inc1
index 084df6bea549..465610661d34 100644
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -1133,7 +1133,7 @@ buildkernel: .MAKE .PHONY
 	@echo "--------------------------------------------------------------"
 .endfor
 
-NO_INSTALLEXTRAKERNELS?=		no
+NO_INSTALLEXTRAKERNELS?=	yes
 
 #
 # installkernel, etc.