diff --git a/arch/arm/src/common/arm_backtrace_fp.c b/arch/arm/src/common/arm_backtrace_fp.c
index 912477d224..0f8af88bd0 100644
--- a/arch/arm/src/common/arm_backtrace_fp.c
+++ b/arch/arm/src/common/arm_backtrace_fp.c
@@ -123,7 +123,7 @@ int up_backtrace(struct tcb_s *tcb,
         {
 #if CONFIG_ARCH_INTERRUPTSTACK > 7
 #  ifdef CONFIG_SMP
-          istacklimit = arm_intstack_top();
+          istacklimit = (void *)arm_intstack_top();
 #  else
           istacklimit = g_intstacktop;
 #  endif /* CONFIG_SMP */