diff --git a/qemu/saimaa.c b/qemu/saimaa.c
index 514a1d5..ffb25db 100644
--- a/qemu/saimaa.c
+++ b/qemu/saimaa.c
@@ -104,7 +104,7 @@ struct SaimaaUartState {
 static int saimaa_vec_n;
 static uint64_t saimaa_vec_read(void *opaque, hwaddr off, unsigned size)
 {
-    if (saimaa_vec_n < 24) {
+    if (saimaa_vec_n < 400) {
         ARMCPU *cpu = ARM_CPU(current_cpu);
         uint64_t pc = cpu ? cpu->env.regs[15] : 0;
         int th = cpu ? cpu->env.thumb : 0;