diff --git a/arch/x86/events/intel/pt.h b/arch/x86/events/intel/pt.h
index 0eb41d07b79a..df6ecf702a3c 100644
--- a/arch/x86/events/intel/pt.h
+++ b/arch/x86/events/intel/pt.h
@@ -78,8 +78,8 @@ struct topa_entry {
 	u64	rsvd2	: 1;
 	u64	size	: 4;
 	u64	rsvd3	: 2;
-	u64	base	: 36;
-	u64	rsvd4	: 16;
+	u64	base	: 40;
+	u64	rsvd4	: 12;
 };
 
 #define PT_CPUID_LEAVES		2