diff --git a/syntax/extra/spec.nanorc b/syntax/extra/spec.nanorc
index 5308c7784..b7da1941e 100644
--- a/syntax/extra/spec.nanorc
+++ b/syntax/extra/spec.nanorc
@@ -14,7 +14,9 @@ color brightblue "\<(AutoReq|AutoProv|AutoReqProv)[[:space:]]*:"
 color brightblue "\<(License|Copyright|Distribution|Vendor|Packager)[[:space:]]*:"
 color brightblue "\<((Source|Patch)[0-9]*|Nosource|Nopatch)[[:space:]]*:"
 # Architectures.
-color brightred "\<(i386|i486|i586|i686|athlon|ia64|alpha|alphaev5|alphaev56|alphapca56|alphaev6|alphaev67|sparc|sparcv9|sparc64armv3l|armv4b|armv4lm|ips|mipsel|ppc|ppciseries|ppcpseries|ppc64|m68k|m68kmint|Sgi|rs6000|i370|s390x?|noarch)\>"
+color brightred "\<((a|loong)arch64|alpha(ev(56?|67?)|pca56)?|amd64|armv(3l|4b|4l|5t(ej?)?l|6h?l|7(hn?)?l|8h?l)|athlon|em64t|geode|i370|i(3|4|5|6)86|ia32e|ia64|m68k(mint)?|mips(64)?(el|r6|r6el)?)\>"
+color brightred "\<(pentium(3|4)|ppc(32dy4|8260|8560)?|ppc64(le|p7)?|ppc(64)?(i|p)series|riscv64|rs6000|s390x?|sgi|sh(3|4|4a)?|sparc(64v?|v8|v9v?)?|x86_64(_v2|_v3|_v4)?|xtensa)\>"
+
 # Architecture and OS conditionals.
 color brightred "%(ifarch|elifarch|ifnarch|ifos|elifos|ifnos)\>"
 # %* strings.