diff --git a/Kernel/Process.h b/Kernel/Process.h
index b329db5b3c..e4b5993375 100644
--- a/Kernel/Process.h
+++ b/Kernel/Process.h
@@ -303,7 +303,7 @@ public:
     int sys$set_thread_name(int tid, const char* buffer, size_t buffer_size);
     int sys$get_thread_name(int tid, char* buffer, size_t buffer_size);
     int sys$rename(const Syscall::SC_rename_params*);
-    int sys$mknod(const Syscall::SC_mknod_params*);
+    int sys$mknod(Userspace<const Syscall::SC_mknod_params*>);
     int sys$shbuf_create(int, void** buffer);
     int sys$shbuf_allow_pid(int, pid_t peer_pid);
     int sys$shbuf_allow_all(int);
diff --git a/Kernel/Syscalls/mknod.cpp b/Kernel/Syscalls/mknod.cpp
index 1ed668f86e..1a599b138d 100644
--- a/Kernel/Syscalls/mknod.cpp
+++ b/Kernel/Syscalls/mknod.cpp
@@ -30,7 +30,7 @@
 
 namespace Kernel {
 
-int Process::sys$mknod(const Syscall::SC_mknod_params* user_params)
+int Process::sys$mknod(Userspace<const Syscall::SC_mknod_params*> user_params)
 {
     REQUIRE_PROMISE(dpath);
     Syscall::SC_mknod_params params;