diff --git a/src/arch/alpha/ev5.cc b/src/arch/alpha/ev5.cc
index 4d72104..ae8efa4 100644
--- a/src/arch/alpha/ev5.cc
+++ b/src/arch/alpha/ev5.cc
@@ -303,6 +303,7 @@
             if (tc->getKernelStats())
                 tc->getKernelStats()->mode(Kernel::kernel, tc);
         }
+        M5_FALLTHROUGH;
 
       case IPR_ICM:
         // only write two mode bits - processor mode