diff --git a/src/userprog/syscall.c b/src/userprog/syscall.c
index 04d763f..cf353cc 100644
--- a/src/userprog/syscall.c
+++ b/src/userprog/syscall.c
@@ -141,10 +141,15 @@ syscall_create (const char *file UNUSED, unsigned initial_size UNUSED)
 }
 
 static bool
-syscall_remove (const char *file UNUSED)
+syscall_remove (const char *file)
 {
-  //TODO
-  return 0;
+  validate_user_pointer (file, 1);
+
+  lock_acquire (&filesys_lock);
+  bool status = filesys_remove (file);
+  lock_release (&filesys_lock);
+
+  return status;
 }
 
 static int