diff --git a/arch/arm/src/common/arm_backtrace_unwind.c b/arch/arm/src/common/arm_backtrace_unwind.c
index 3eb004b0db..22ea4acd17 100644
--- a/arch/arm/src/common/arm_backtrace_unwind.c
+++ b/arch/arm/src/common/arm_backtrace_unwind.c
@@ -623,7 +623,7 @@ int up_backtrace(struct tcb_s *tcb,
 #  ifdef CONFIG_SMP
           frame.stack_top = arm_intstack_top();
 #  else
-          frame.stack_top = &g_intstacktop;
+          frame.stack_top = (unsigned long)&g_intstacktop;
 #  endif /* CONFIG_SMP */
 #endif /* CONFIG_ARCH_INTERRUPTSTACK > 7 */