diff --git a/arch/arm/src/common/up_initialize.c b/arch/arm/src/common/up_initialize.c
index 5182598246a..267f5e1c594 100644
--- a/arch/arm/src/common/up_initialize.c
+++ b/arch/arm/src/common/up_initialize.c
@@ -100,13 +100,13 @@ static void up_calibratedelay(void)
  *
  ****************************************************************************/
 
-#if defined(CONFIG_STACK_COLORATION) && CONFIG_ARCH_INTERRUPTSTACK > 3
+#if defined(CONFIG_STACK_COLORATION) && CONFIG_ARCH_INTERRUPTSTACK > 7
 static inline void up_color_intstack(void)
 {
   uint32_t *ptr = (uint32_t *)&g_intstackalloc;
   ssize_t size;
 
-  for (size = (CONFIG_ARCH_INTERRUPTSTACK & ~3);
+  for (size = (CONFIG_ARCH_INTERRUPTSTACK & ~7);
        size > 0;
        size -= sizeof(uint32_t))
     {