diff --git a/arch/arm/src/common/up_checkstack.c b/arch/arm/src/common/up_checkstack.c
index 27ac202345e..6c13f63d13e 100644
--- a/arch/arm/src/common/up_checkstack.c
+++ b/arch/arm/src/common/up_checkstack.c
@@ -104,7 +104,7 @@ size_t up_check_tcbstack(FAR _TCB *tcb)
    */
 
 #if 0
-  if (mark + 16 > tcb->adj_stack_size)
+  if (mark + 16 > tcb->adj_stack_size/4)
     {
       int i, j;