diff --git a/qiling/arch/cortex_m.py b/qiling/arch/cortex_m.py
index 72c7e59be..382a8b8f6 100644
--- a/qiling/arch/cortex_m.py
+++ b/qiling/arch/cortex_m.py
@@ -163,4 +163,4 @@ def interrupt_handler(self, ql, intno):
             self.regs.write('pc', entry)
             self.regs.write('lr', exc_return) 
 
-            self.uc.emu_start(self.effective_pc, 0, 0, 0)
+            self.uc.emu_start(self.effective_pc, 0, 0, 0xffffff)