diff --git a/drivers/net/tap/meson.build b/drivers/net/tap/meson.build
index f0d03069cd..c09713a67b 100644
--- a/drivers/net/tap/meson.build
+++ b/drivers/net/tap/meson.build
@@ -1,12 +1,6 @@
 # SPDX-License-Identifier: BSD-3-Clause
 # Copyright 2018 Luca Boccassi <bluca@debian.org>
 
-if arch_subdir == 'loongarch'
-    build = false
-    reason = 'not supported on LoongArch'
-    subdir_done()
-endif
-
 if not is_linux
     build = false
     reason = 'only supported on Linux'
diff --git a/drivers/net/tap/tap_bpf.h b/drivers/net/tap/tap_bpf.h
index 639bdf3a79..0d38bc111f 100644
--- a/drivers/net/tap/tap_bpf.h
+++ b/drivers/net/tap/tap_bpf.h
@@ -103,6 +103,8 @@ union bpf_attr {
 #  define __NR_bpf 361
 # elif defined(__riscv)
 #  define __NR_bpf 280
+# elif defined(__loongarch__)
+#  define __NR_bpf 280
 # else
 #  error __NR_bpf not defined
 # endif