diff --git a/arch/x86_64/mm/fault.c b/arch/x86_64/mm/fault.c
index 84f1172..99a8018 100644
--- a/arch/x86_64/mm/fault.c
+++ b/arch/x86_64/mm/fault.c
@@ -301,7 +301,7 @@
 	return 0;
 }
 
-int page_fault_trace = 0;
+static int page_fault_trace;
 int exception_trace = 1;
 
 /*