diff --git a/sys/powerpc/powerpc/trap.c b/sys/powerpc/powerpc/trap.c
index e1a450823fc..5d2fbd59e88 100644
--- a/sys/powerpc/powerpc/trap.c
+++ b/sys/powerpc/powerpc/trap.c
@@ -264,7 +264,8 @@ trap(struct trapframe *frame)
 #if defined(__powerpc64__) && defined(AIM)
 		case EXC_ISE:
 		case EXC_DSE:
-			if (handle_user_slb_spill(&p->p_vmspace->vm_pmap,
+			if (disable_radix == false ||
+			    handle_user_slb_spill(&p->p_vmspace->vm_pmap,
 			    (type == EXC_ISE) ? frame->srr0 : frame->dar) != 0){
 				sig = SIGSEGV;
 				ucode = SEGV_MAPERR;