diff --git a/Kernel/Process.h b/Kernel/Process.h
index e27adc9d5d..22c90909fd 100644
--- a/Kernel/Process.h
+++ b/Kernel/Process.h
@@ -281,7 +281,7 @@ public:
     int sys$unlink(const char* pathname, size_t path_length);
     int sys$symlink(Userspace<const Syscall::SC_symlink_params*>);
     int sys$rmdir(Userspace<const char*> pathname, size_t path_length);
-    int sys$mount(const Syscall::SC_mount_params*);
+    int sys$mount(Userspace<const Syscall::SC_mount_params*>);
     int sys$umount(const char* mountpoint, size_t mountpoint_length);
     int sys$chmod(const char* pathname, size_t path_length, mode_t);
     int sys$fchmod(int fd, mode_t);
diff --git a/Kernel/Syscalls/mount.cpp b/Kernel/Syscalls/mount.cpp
index caf8bf9495..a10de855a5 100644
--- a/Kernel/Syscalls/mount.cpp
+++ b/Kernel/Syscalls/mount.cpp
@@ -35,7 +35,7 @@
 
 namespace Kernel {
 
-int Process::sys$mount(const Syscall::SC_mount_params* user_params)
+int Process::sys$mount(Userspace<const Syscall::SC_mount_params*> user_params)
 {
     if (!is_superuser())
         return -EPERM;