diff --git a/Tester/main.c b/Tester/main.c
index ad5633a..65a12b6 100755
--- a/Tester/main.c
+++ b/Tester/main.c
@@ -82,7 +82,7 @@ static void vblank(GB_gameboy_t *gb)
     
     /* Detect common crashes and stop the test early */
     if (frames < test_length - 1) {
-        if (gb->backtrace_size >= 0x300) {
+        if (gb->backtrace_size >= 0x200 || (gb->registers[GB_REGISTER_SP] >= 0xfe00 && gb->registers[GB_REGISTER_SP] < 0xff80)) {
             GB_log(gb, "A stack overflow has probably occurred.\n");
             frames = test_length - 1;
         }