1 files changed, 2 insertions, 2 deletions
diff --git a/cont.c b/cont.c
index b9634faff8..9092061bcc 100644
--- a/cont.c
+++ b/cont.c
@@ -47,7 +47,7 @@
 #define RB_PAGE_SIZE (pagesize)
 #define RB_PAGE_MASK (~(RB_PAGE_SIZE - 1))
 static long pagesize;
-#define FIBER_MACHINE_STACK_ALLOCATION_SIZE  (0x10000 / sizeof(VALUE))
+#define FIBER_MACHINE_STACK_ALLOCATION_SIZE  (0x10000)
 #endif
 
 #define CAPTURE_JUST_VALID_VM_STACK 1
@@ -607,7 +607,7 @@ fiber_setcontext(rb_fiber_t *newfib, rb_fiber_t *oldfib)
     rb_thread_t *th = GET_THREAD(), *sth = &newfib->cont.saved_thread;
 
     if (newfib->status != RUNNING) {
-	fiber_initialize_machine_stack_context(newfib, FIBER_MACHINE_STACK_ALLOCATION_SIZE * sizeof(VALUE));
+	fiber_initialize_machine_stack_context(newfib, FIBER_MACHINE_STACK_ALLOCATION_SIZE);
     }
 
     /* restore thread context */