diff --git a/arch/alpha/include/asm/core_tsunami.h b/arch/alpha/include/asm/core_tsunami.h
index 3391e95754f2..fe3fd4570fac 100644
--- a/arch/alpha/include/asm/core_tsunami.h
+++ b/arch/alpha/include/asm/core_tsunami.h
@@ -283,6 +283,11 @@ union TPchipPERRMASK {
  * Data structure for handling TSUNAMI machine checks:
  */
 struct el_TSUNAMI_sysdata_mcheck {
+	u64 sesf;
+	u64 dir;
+	u64 misc;
+	u64 p0_perror;
+	u64 p1_perror;
 };