diff --git a/nx/include/switch/svc.h b/nx/include/switch/svc.h
index 40883af7..5c110975 100644
--- a/nx/include/switch/svc.h
+++ b/nx/include/switch/svc.h
@@ -18,8 +18,11 @@ static inline void* armGetTls(void) {
     return ret;
 }
 
+Result svcCloseHandle(Handle handle);
+Result svcWaitSynchronization(s32* index, const Handle* handles, s32 handleCount, u64 timeout);
 Result svcConnectToNamedPort(Handle* session, const char* name);
 Result svcBreak(u32 BreakReason, u64 inval1, u64 inval2);
+Result svcAcceptSession(Handle *session_handle, Handle port_handle);
 Result svcReplyAndReceive(s32* index, const Handle* handles, s32 handleCount, Handle replyTarget, u64 timeout);
 Result svcManageNamedPort(Handle* portServer, const char* name, s32 maxSessions);
 
diff --git a/nx/source/svc.s b/nx/source/svc.s
index 510e277e..784953bf 100644
--- a/nx/source/svc.s
+++ b/nx/source/svc.s
@@ -11,6 +11,19 @@
 	.cfi_endproc
 .endm
 
+SVC_BEGIN svcCloseHandle
+	svc 0x16
+	ret
+SVC_END
+
+SVC_BEGIN svcWaitSynchronization
+	str x0, [sp, #-16]!
+	svc 0x18
+	ldr x2, [sp], #16
+	str w1, [x2]
+	ret
+SVC_END
+
 SVC_BEGIN svcConnectToNamedPort
 	str x0, [sp, #-16]!
 	svc 0x1f
@@ -24,6 +37,14 @@ SVC_BEGIN svcBreak
 	ret
 SVC_END
 
+SVC_BEGIN svcAcceptSession
+	str x0, [sp, #-16]!
+	svc 0x41
+	ldr x2, [sp], #16
+	str w1, [x2]
+	ret
+SVC_END
+
 SVC_BEGIN svcReplyAndReceive
 	str x0, [sp, #-16]!
 	svc 0x43