diff --git a/ChangeLog b/ChangeLog
index 3c694f163c..2bb7667358 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Fri Sep 28 16:22:52 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* vm_core.h (rb_vm_struct): fix typo: bufferd -> buffered.
+
 Fri Sep 28 15:47:48 2007  Koichi Sasada  <ko1@atdot.net>
 
 	* benchmark/driver.rb: fix to output benchmark results
diff --git a/signal.c b/signal.c
index 53e2a0f19f..bd2579dd0a 100644
--- a/signal.c
+++ b/signal.c
@@ -451,7 +451,7 @@ sighandler(int sig)
 {
     rb_vm_t *vm = GET_VM(); /* fix me for Multi-VM */
     ATOMIC_INC(vm->signal_buff[sig]);
-    ATOMIC_INC(vm->bufferd_signal_size);
+    ATOMIC_INC(vm->buffered_signal_size);
 
 #if !defined(BSD_SIGNAL) && !defined(POSIX_SIGNAL)
     ruby_signal(sig, sighandler);
@@ -501,7 +501,7 @@ rb_get_next_signal(rb_vm_t *vm)
 	    rb_disable_interrupt();
 	    {
 		ATOMIC_DEC(vm->signal_buff[i]);
-		ATOMIC_DEC(vm->bufferd_signal_size);
+		ATOMIC_DEC(vm->buffered_signal_size);
 	    }
 	    rb_enable_interrupt();
 	    sig = i;
diff --git a/thread.c b/thread.c
index 500def143b..d049104a91 100644
--- a/thread.c
+++ b/thread.c
@@ -1884,10 +1884,10 @@ timer_thread_function(void)
     vm->running_thread->interrupt_flag = 1;
 
     /* check signal */
-    if (vm->bufferd_signal_size && vm->main_thread->exec_signal == 0) {
+    if (vm->buffered_signal_size && vm->main_thread->exec_signal == 0) {
 	vm->main_thread->exec_signal = rb_get_next_signal(vm);
-	thread_debug("bufferd_signal_size: %d, sig: %d\n",
-		     vm->bufferd_signal_size, vm->main_thread->exec_signal);
+	thread_debug("buffered_signal_size: %d, sig: %d\n",
+		     vm->buffered_signal_size, vm->main_thread->exec_signal);
 	rb_thread_interrupt(vm->main_thread);
     }
 
diff --git a/vm_core.h b/vm_core.h
index fbffa30b28..7e01bfb994 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -326,7 +326,7 @@ typedef struct rb_vm_struct {
     
     /* signal */
     rb_atomic_t signal_buff[RUBY_NSIG];
-    rb_atomic_t bufferd_signal_size;
+    rb_atomic_t buffered_signal_size;
 
     /* hook */
     rb_event_hook_t *event_hooks;