lib/PublicInbox/Syscall.pm | 2 +-

diff --git a/lib/PublicInbox/Syscall.pm b/lib/PublicInbox/Syscall.pm
index 777c44d0660269d9753de2682b9000e04db5b4f2..46496bcaef55085822df8047b3393cd6d876a24c 100644
--- a/lib/PublicInbox/Syscall.pm
+++ b/lib/PublicInbox/Syscall.pm
@@ -206,7 +206,7 @@         $SYS_epoll_wait   = 409;
         $u64_mod_8        = 1;
         $SYS_signalfd4 = 484;
 	$SFD_CLOEXEC = 010000000;
-    } elsif ($machine eq 'aarch64' || $machine eq 'loongarch64') {
+    } elsif ($machine =~ /\A(?:loong)?aarch64\z/ || $machine eq 'riscv64') {
         $SYS_epoll_create = 20;  # (sys_epoll_create1)
         $SYS_epoll_ctl    = 21;
         $SYS_epoll_wait   = 22;  # (sys_epoll_pwait)