diff --git a/lib/libc/aarch64/sys/Makefile.inc b/lib/libc/aarch64/sys/Makefile.inc
index ae48fd739477..38eb13fb89be 100644
--- a/lib/libc/aarch64/sys/Makefile.inc
+++ b/lib/libc/aarch64/sys/Makefile.inc
@@ -1,11 +1,8 @@
 MIASM:=	${MIASM:Nfreebsd[467]_*}
 
 SRCS+=	__vdso_gettc.c \
 	sched_getcpu_gen.c
 
 MDASM=	cerror.S \
 	syscall.S \
 	vfork.S
-
-# Don't generate default code for these syscalls:
-NOASM+=	vfork.o
diff --git a/lib/libc/amd64/sys/Makefile.inc b/lib/libc/amd64/sys/Makefile.inc
index 658fbd2add50..d4a767c90a5f 100644
--- a/lib/libc/amd64/sys/Makefile.inc
+++ b/lib/libc/amd64/sys/Makefile.inc
@@ -1,10 +1,7 @@
 SRCS+=	\
 	amd64_get_fsbase.c \
 	amd64_get_gsbase.c \
 	amd64_set_fsbase.c \
 	amd64_set_gsbase.c
 
 MDASM=	vfork.S cerror.S getcontext.S
-
-# Don't generate default code for these syscalls:
-NOASM+=	vfork.o
diff --git a/lib/libc/riscv/sys/Makefile.inc b/lib/libc/riscv/sys/Makefile.inc
index cd8ba4f11557..e4e66ba19bd6 100644
--- a/lib/libc/riscv/sys/Makefile.inc
+++ b/lib/libc/riscv/sys/Makefile.inc
@@ -1,9 +1,6 @@
 SRCS+=	__vdso_gettc.c \
 	sched_getcpu_gen.c
 
 MDASM=	cerror.S \
 	syscall.S \
 	vfork.S
-
-# Don't generate default code for these syscalls:
-NOASM+=	vfork.o