diff --git a/[refs] b/[refs]
index 100e82ec7d7a..462b4c35916a 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: fb093eab6d8963a085f112773284f2bcb3d7907b
+refs/heads/master: 4c1cbafb88490757a38119c41229251369bcecbc
diff --git a/trunk/include/asm-x86/acpi.h b/trunk/include/asm-x86/acpi.h
index 14411c9de46f..73ce5b32443f 100644
--- a/trunk/include/asm-x86/acpi.h
+++ b/trunk/include/asm-x86/acpi.h
@@ -28,6 +28,7 @@
 #include <asm/numa.h>
 #include <asm/processor.h>
 #include <asm/mmu.h>
+#include <asm/mpspec.h>
 
 #define COMPILER_DEPENDENT_INT64   long long
 #define COMPILER_DEPENDENT_UINT64  unsigned long long