diff --git a/ChangeLog b/ChangeLog
index e748f6b193..1ee7aa20fb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Fri Sep  5 06:04:22 2014  Eric Wong  <e@80x24.org>
+
+	* vm.c: remove unused USE_THREAD_RECYCLE [misc #10198]
+
 Fri Sep  5 00:29:08 2014  Tanaka Akira  <akr@fsij.org>
 
 	* configure.in (dirfd): Check function.
diff --git a/vm.c b/vm.c
index d2e8f07598..f43228f84f 100644
--- a/vm.c
+++ b/vm.c
@@ -1967,16 +1967,6 @@ rb_thread_recycle_stack_release(VALUE *stack)
     ruby_xfree(stack);
 }
 
-#ifdef USE_THREAD_RECYCLE
-static rb_thread_t *
-thread_recycle_struct(void)
-{
-    void *p = ALLOC_N(rb_thread_t, 1);
-    memset(p, 0, sizeof(rb_thread_t));
-    return p;
-}
-#endif
-
 void
 rb_thread_mark(void *ptr)
 {
@@ -2134,13 +2124,9 @@ static VALUE
 thread_alloc(VALUE klass)
 {
     VALUE volatile obj;
-#ifdef USE_THREAD_RECYCLE
-    rb_thread_t *th = thread_recycle_struct();
-    obj = TypedData_Wrap_Struct(klass, &thread_data_type, th);
-#else
     rb_thread_t *th;
     obj = TypedData_Make_Struct(klass, rb_thread_t, &thread_data_type, th);
-#endif
+
     return obj;
 }