diff --git a/gnu/usr.bin/binutils/as/Makefile b/gnu/usr.bin/binutils/as/Makefile
index a27fed3b306b..4436394f5de4 100644
--- a/gnu/usr.bin/binutils/as/Makefile
+++ b/gnu/usr.bin/binutils/as/Makefile
@@ -8,7 +8,7 @@
 
 .PATH: ${SRCDIR}/gas ${SRCDIR}/gas/config
 
-.if ${TARGET_ARCH} == "arm" || ${TARGET_ARCH} == "powerpc64"
+.if ${TARGET_ARCH:Marm*} || ${TARGET_ARCH} == "powerpc64"
 NO_WERROR.clang=
 .endif