diff --git a/sys/Makefile b/sys/Makefile
--- a/sys/Makefile
+++ b/sys/Makefile
@@ -11,9 +11,6 @@
 CSCOPE_ARCHDIR = amd64 arm arm64 i386 powerpc riscv x86
 .else
 CSCOPE_ARCHDIR = ${MACHINE}
-.if ${MACHINE} != ${MACHINE_CPUARCH}
-CSCOPE_ARCHDIR += ${MACHINE_CPUARCH}
-.endif
 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
 CSCOPE_ARCHDIR += x86
 .endif