diff --git a/etc/syscalls_linux_aarch64.md b/etc/syscalls_linux_aarch64.md
index b7e5cf0..0060958 100644
--- a/etc/syscalls_linux_aarch64.md
+++ b/etc/syscalls_linux_aarch64.md
@@ -198,7 +198,7 @@
 | 0xc3 (195)  | shmctl                  | (int shmid, int cmd, struct shmid_ds *buf)                                                                                                 | __arm64_sys_shmctl                  | false       |
 | 0xc4 (196)  | shmat                   | (int shmid, char *shmaddr, int shmflg)                                                                                                     | __arm64_sys_shmat                   | false       |
 | 0xc5 (197)  | shmdt                   | (char *shmaddr)                                                                                                                            | __arm64_sys_shmdt                   | false       |
-| 0xc6 (198)  | socket                  | (int family, int type, int protocol)                                                                                                       | __arm64_sys_socket                  | false       |
+| 0xc6 (198)  | socket                  | (int family, int type, int protocol)                                                                                                       | __arm64_sys_socket                  | dummy       |
 | 0xc7 (199)  | socketpair              | (int family, int type, int protocol, int *usockvec)                                                                                        | __arm64_sys_socketpair              | false       |
 | 0xc8 (200)  | bind                    | (int fd, struct sockaddr *umyaddr, int addrlen)                                                                                            | __arm64_sys_bind                    | false       |
 | 0xc9 (201)  | listen                  | (int fd, int backlog)                                                                                                                      | __arm64_sys_listen                  | false       |
diff --git a/libkernel/src/error/syscall_error.rs b/libkernel/src/error/syscall_error.rs
index 4e62bd7..4d0783d 100644
--- a/libkernel/src/error/syscall_error.rs
+++ b/libkernel/src/error/syscall_error.rs
@@ -47,6 +47,7 @@ pub fn kern_err_to_syscall(err: KernelError) -> isize {
         KernelError::Fs(FsError::NotFound) => ENOENT,
         KernelError::NotATty => ENOTTY,
         KernelError::SeekPipe => ESPIPE,
+        KernelError::NotSupported => EINVAL,
         _ => todo!(),
     }
 }
diff --git a/src/arch/arm64/exceptions/syscall.rs b/src/arch/arm64/exceptions/syscall.rs
index bce7050..f27e5d1 100644
--- a/src/arch/arm64/exceptions/syscall.rs
+++ b/src/arch/arm64/exceptions/syscall.rs
@@ -58,7 +58,7 @@ use crate::{
 };
 use alloc::boxed::Box;
 use libkernel::{
-    error::syscall_error::kern_err_to_syscall,
+    error::{KernelError, syscall_error::kern_err_to_syscall},
     memory::address::{TUA, UA, VA},
 };
 
@@ -217,6 +217,7 @@ pub async fn handle_syscall() {
         0xaf => sys_geteuid().map_err(|e| match e {}),
         0xb0 => sys_getgid().map_err(|e| match e {}),
         0xb1 => sys_getegid().map_err(|e| match e {}),
+        0xc6 => Err(KernelError::NotSupported),
         0xd6 => sys_brk(VA::from_value(arg1 as _))
             .await
             .map_err(|e| match e {}),