diff --git a/tools/perf/builtin.h b/tools/perf/builtin.h
index ab28bca..34a8a9a 100644
--- a/tools/perf/builtin.h
+++ b/tools/perf/builtin.h
@@ -33,5 +33,6 @@
 extern int cmd_kmem(int argc, const char **argv, const char *prefix);
 extern int cmd_lock(int argc, const char **argv, const char *prefix);
 extern int cmd_kvm(int argc, const char **argv, const char *prefix);
+extern int cmd_test(int argc, const char **argv, const char *prefix);
 
 #endif