diff --git a/rpcs3/Emu/Cell/lv2/lv2.cpp b/rpcs3/Emu/Cell/lv2/lv2.cpp
index bdac695b88..dcced8143d 100644
--- a/rpcs3/Emu/Cell/lv2/lv2.cpp
+++ b/rpcs3/Emu/Cell/lv2/lv2.cpp
@@ -744,7 +744,7 @@ std::array<ppu_function_t, 1024> g_ppu_syscall_table
 	BIND_FUNC(sys_fs_get_block_size),                       //822 (0x336)
 	null_func,//BIND_FUNC(sys_fs_acl_read),                 //823 (0x337)
 	null_func,//BIND_FUNC(sys_fs_acl_write),                //824 (0x338)
-	null_func,//BIND_FUNC(sys_fs_lsn_get_cda_size),         //825 (0x339)
+	BIND_FUNC(sys_fs_lsn_get_cda_size),                     //825 (0x339)
 	null_func,//BIND_FUNC(sys_fs_lsn_get_cda),              //826 (0x33A)
 	BIND_FUNC(sys_fs_lsn_lock),                             //827 (0x33B)
 	BIND_FUNC(sys_fs_lsn_unlock),                           //828 (0x33C)
diff --git a/rpcs3/Emu/Cell/lv2/sys_fs.cpp b/rpcs3/Emu/Cell/lv2/sys_fs.cpp
index 71c43902bb..8500f3a819 100644
--- a/rpcs3/Emu/Cell/lv2/sys_fs.cpp
+++ b/rpcs3/Emu/Cell/lv2/sys_fs.cpp
@@ -1146,6 +1146,22 @@ error_code sys_fs_utime(vm::ps3::cptr<char> path, vm::ps3::cptr<CellFsUtimbuf> t
 	return CELL_OK;
 }
 
+error_code sys_fs_lsn_get_cda_size(u32 fd, vm::ps3::ptr<u64> ptr)
+{
+	sys_fs.warning("sys_fs_lsn_get_cda_size(fd=%d, ptr=*0x%x)", fd, ptr);
+
+	const auto file = idm::get<lv2_fs_object, lv2_file>(fd);
+
+	if (!file)
+	{
+		return CELL_EBADF;
+	}
+
+	// TODO
+	*ptr = 0;
+	return CELL_OK;
+}
+
 error_code sys_fs_lsn_lock(u32 fd)
 {
 	sys_fs.trace("sys_fs_lsn_lock(fd=%d)", fd);
diff --git a/rpcs3/Emu/Cell/lv2/sys_fs.h b/rpcs3/Emu/Cell/lv2/sys_fs.h
index 3184cc54a4..7185d20034 100644
--- a/rpcs3/Emu/Cell/lv2/sys_fs.h
+++ b/rpcs3/Emu/Cell/lv2/sys_fs.h
@@ -351,5 +351,6 @@ error_code sys_fs_truncate(vm::ps3::cptr<char> path, u64 size);
 error_code sys_fs_ftruncate(u32 fd, u64 size);
 error_code sys_fs_chmod(vm::ps3::cptr<char> path, s32 mode);
 error_code sys_fs_utime(vm::ps3::cptr<char> path, vm::ps3::cptr<CellFsUtimbuf> timep);
+error_code sys_fs_lsn_get_cda_size(u32 fd, vm::ps3::ptr<u64> ptr);
 error_code sys_fs_lsn_lock(u32 fd);
 error_code sys_fs_lsn_unlock(u32 fd);