diff --git a/target-mips/helper.c b/target-mips/helper.c
index 0cda1ef5472bfd2ea6108c0a4a28579972f22c91..d48c32b221376bd5f782f859e2f00a7f8b0ba924 100644
--- a/target-mips/helper.c
+++ b/target-mips/helper.c
@@ -339,9 +339,11 @@ void do_interrupt (CPUState *env)
         /* XXX: TODO: manage defered watch exceptions */
         goto set_EPC;
     case EXCP_AdEL:
-    case EXCP_AdES:
         cause = 4;
         goto set_EPC;
+    case EXCP_AdES:
+        cause = 5;
+        goto set_EPC;
     case EXCP_TLBL:
         cause = 2;
         if (env->error_code == 1 && !(env->CP0_Status & (1 << CP0St_EXL)))