diff --git a/target-alpha/op_helper.c b/target-alpha/op_helper.c
index 00f5c1f260cc917cf1db23ff17003da56646c565..8bb5d55a23b27490327d96f2c9f834abd3c978cc 100644
--- a/target-alpha/op_helper.c
+++ b/target-alpha/op_helper.c
@@ -24,7 +24,7 @@
 
 /*****************************************************************************/
 /* Exceptions processing helpers */
-void helper_excp (int excp, int error)
+void QEMU_NORETURN helper_excp (int excp, int error)
 {
     env->exception_index = excp;
     env->error_code = error;