diff --git a/arch/arm/src/common/up_internal.h b/arch/arm/src/common/up_internal.h
index b0231712886..bd60b0fad1b 100644
--- a/arch/arm/src/common/up_internal.h
+++ b/arch/arm/src/common/up_internal.h
@@ -210,13 +210,8 @@ extern const uint32_t g_idle_topstack;
 /* Address of the saved user stack pointer */
 
 #if CONFIG_ARCH_INTERRUPTSTACK > 3
-#if defined(CONFIG_ARCH_CORTEXM0) || defined(CONFIG_ARCH_CORTEXM3) || \
-    defined(CONFIG_ARCH_CORTEXM4)
 extern uint32_t g_intstackalloc; /* Allocated stack base */
 extern uint32_t g_intstackbase;  /* Initial top of interrupt stack */
-#  else
-extern uint32_t g_intstackbase;
-#  endif
 #endif
 
 /* These 'addresses' of these values are setup by the linker script.  They are