diff --git a/tools/perf/tests/bp_account.c b/tools/perf/tests/bp_account.c
index a20cbc44542691..624e4ef73d1c0c 100644
--- a/tools/perf/tests/bp_account.c
+++ b/tools/perf/tests/bp_account.c
@@ -22,7 +22,7 @@
 #include "perf.h"
 #include "cloexec.h"
 
-volatile long the_var;
+static volatile long the_var;
 
 static noinline int test_function(void)
 {