diff --git a/Makefile.inc1 b/Makefile.inc1
index 679308cb09f6..9d3f179a24f6 100644
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -364,7 +364,7 @@ _libraries:
 	@echo ">>> stage 4.2: building libraries"
 	@echo "--------------------------------------------------------------"
 	${_+_}cd ${.CURDIR}; \
-	    ${WMAKE} -DNOFSCHG -DNOHTML -DNO_INFO -DNO_LINT -DNO_MAN -DNO_PROFILE \
+	    ${WMAKE} -DNO_FSCHG -DNOHTML -DNO_INFO -DNO_LINT -DNO_MAN -DNO_PROFILE \
 	    libraries
 _depend:
 	@echo
diff --git a/release/picobsd/build/picobsd b/release/picobsd/build/picobsd
index 5467c427039d..09daca76c1e1 100755
--- a/release/picobsd/build/picobsd
+++ b/release/picobsd/build/picobsd
@@ -182,7 +182,7 @@ create_includes_and_libraries() {
 	    BINOWN=`id -un` BINGRP=`id -gn` \
 	    DESTDIR=${l_usrtree}/.. \
 	    make -m ${SRC}/share/mk \
-		-DNOHTML -DNO_INFO -DNO_MAN -DNOSHARE -DNOFSCHG "
+		-DNOHTML -DNO_INFO -DNO_MAN -DNOSHARE -DNO_FSCHG "
 	log "do a 'make obj' in a few places."
 	# This is very version-specific... The following works for 5.0
 	for i in lib secure/lib gnu/lib usr.sbin/pcvt/keycap \
diff --git a/share/mk/bsd.compat.mk b/share/mk/bsd.compat.mk
index 6953957c8b85..7b245052f63c 100644
--- a/share/mk/bsd.compat.mk
+++ b/share/mk/bsd.compat.mk
@@ -5,6 +5,7 @@
 	NOATM:NO_ATM \
 	NODOCCOMPRESS:NO_DOCCOMPRESS \
 	NOEXTRADEPEND:NO_EXTRADEPEND \
+	NOFSCHG:NO_FSCHG \
 	NOINFO:NO_INFO \
 	NOINFOCOMPRESS:NO_INFOCOMPRESS \
 	NOINSTALLLIB:NO_INSTALLLIB \
diff --git a/share/mk/bsd.lib.mk b/share/mk/bsd.lib.mk
index 61b8da5a0288..8fa15afb6420 100644
--- a/share/mk/bsd.lib.mk
+++ b/share/mk/bsd.lib.mk
@@ -188,7 +188,7 @@ _EXTRADEPEND:
 .if !target(install)
 
 .if defined(PRECIOUSLIB)
-.if !defined(NOFSCHG)
+.if !defined(NO_FSCHG)
 SHLINSTALLFLAGS+= -fschg
 .endif
 SHLINSTALLFLAGS+= -S
diff --git a/share/mk/bsd.prog.mk b/share/mk/bsd.prog.mk
index 5d08816f2ac8..6c5d7c1eed4d 100644
--- a/share/mk/bsd.prog.mk
+++ b/share/mk/bsd.prog.mk
@@ -116,7 +116,7 @@ _EXTRADEPEND:
 .if !target(install)
 
 .if defined(PRECIOUSPROG)
-.if !defined(NOFSCHG)
+.if !defined(NO_FSCHG)
 INSTALLFLAGS+= -fschg
 .endif
 INSTALLFLAGS+= -S