diff --git a/sys/Makefile b/sys/Makefile
index 688a00453b2d..a193bbc2b29d 100644
--- a/sys/Makefile
+++ b/sys/Makefile
@@ -8,7 +8,7 @@ CSCOPEDIRS=	bsm cam cddl compat conf contrib crypto ddb dev fs gdb \
 		rpc security sys ufs vm xdr xen ${CSCOPE_ARCHDIR}
 .if !defined(CSCOPE_ARCHDIR)
 .if defined(ALL_ARCH)
-CSCOPE_ARCHDIR = amd64 arm arm64 i386 mips powerpc riscv x86
+CSCOPE_ARCHDIR = amd64 arm arm64 i386 powerpc riscv x86
 .else
 CSCOPE_ARCHDIR = ${MACHINE}
 .if ${MACHINE} != ${MACHINE_CPUARCH}