diff --git a/userprog/process.c b/userprog/process.c
index 1f6f72a73c1c984ecdca3ed54da0f8bca28e4a27..5cf724a3d6398386a858e009fe6d39a0ac44ef05 100644
--- a/userprog/process.c
+++ b/userprog/process.c
@@ -21,25 +21,32 @@
 static thread_func start_process NO_RETURN;
 static bool load (const char *cmdline, void (**eip) (void), void **esp);
 
-/* Starts a new thread running a user program loaded from
-   FILENAME.  The new thread may be scheduled (and may even exit)
+/* Starts a new thread running a user program loaded by parsing
+   COMMAND. The new thread may be scheduled (and may even exit)
    before process_execute() returns.  Returns the new process's
    thread id, or TID_ERROR if the thread cannot be created. */
 tid_t
-process_execute (const char *file_name) 
+process_execute (const char *command)
 {
   char *fn_copy;
   tid_t tid;
 
-  /* Make a copy of FILE_NAME.
+  /* Make a copy of COMMAND.
      Otherwise there's a race between the caller and load(). */
   fn_copy = palloc_get_page (0);
   if (fn_copy == NULL)
     return TID_ERROR;
-  strlcpy (fn_copy, file_name, PGSIZE);
-
-  /* Create a new thread to execute FILE_NAME. */
-  tid = thread_create (file_name, PRI_DEFAULT, start_process, fn_copy);
+  strlcpy (fn_copy, command, PGSIZE);
+
+  /* Create a new thread to execute COMMAND. */
+  /*
+   * FIXME: right now, COMMAND is assumed to be just the filename on its own
+   *
+   * If this is not the case (if the user passed a program name with arguments),
+   * then loading will fail.
+   * NOTE: remove this comment block when argument parsing is implemented.
+   */
+  tid = thread_create (command, PRI_DEFAULT, start_process, fn_copy);
 
   if (tid == TID_ERROR)
     palloc_free_page (fn_copy); 
diff --git a/userprog/process.h b/userprog/process.h
index 688cd2a37fd2c1bd7fdcb417f834026a25fa4945..ad49fecdbd9c79a0019f7a9bc102e0ad8e018240 100644
--- a/userprog/process.h
+++ b/userprog/process.h
@@ -3,7 +3,7 @@
 
 #include "threads/thread.h"
 
-tid_t process_execute (const char *file_name);
+tid_t process_execute (const char *command);
 int process_wait (tid_t);
 void process_exit (void);
 void process_activate (void);