diff --git a/Makefile.inc1 b/Makefile.inc1
index 5c7fd0cec9d0..278159e5d783 100644
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -179,8 +179,8 @@ CROSSENV=	MAKEOBJDIRPREFIX=${OBJTREE} \
 
 # bootstrap-tool stage
 BMAKEENV=	${BOOTSTRAPENV}
-BMAKE=		${BMAKEENV} ${MAKE} -f Makefile.inc1 -DNOHTML -DNOINFO \
-			-DNOMAN -DNOPIC -DNOPROFILE -DNOSHARED
+BMAKE=		${BMAKEENV} ${MAKE} -f Makefile.inc1 -DBOOTSTRAPPING \
+		-DNOHTML -DNOINFO -DNOMAN -DNOPIC -DNOPROFILE -DNOSHARED
 
 # build-tool stage
 TMAKEENV=	MAKEOBJDIRPREFIX=${OBJTREE} \
@@ -191,9 +191,9 @@ TMAKE=		${TMAKEENV} ${MAKE} -f Makefile.inc1
 # cross-tool stage
 XMAKEENV=	${BOOTSTRAPENV} \
 		TARGET_ARCH=${MACHINE_ARCH}
-XMAKE=		${XMAKEENV} ${MAKE} -f Makefile.inc1 -DNO_FORTRAN -DNO_GDB \
-			-DNOHTML -DNOINFO -DNOMAN -DNOPIC -DNOPROFILE \
-			-DNOSHARED
+XMAKE=		${XMAKEENV} ${MAKE} -f Makefile.inc1 -DBOOTSTRAPPING \
+		-DNO_FORTRAN -DNO_GDB -DNOHTML -DNOINFO -DNOMAN \
+		-DNOPIC -DNOPROFILE -DNOSHARED
 
 # world stage
 WMAKEENV=	${CROSSENV} \