diff --git a/Documentation/perf_counter/builtin-report.c b/Documentation/perf_counter/builtin-report.c
index 9aef7c54483ec27896a7c1a51b592ae32f3a69c4..6265bedcd9370a924899753e7c458c695b4c2e2d 100644
--- a/Documentation/perf_counter/builtin-report.c
+++ b/Documentation/perf_counter/builtin-report.c
@@ -4,7 +4,6 @@
 #include <libelf.h>
 #include <gelf.h>
 #include <elf.h>
-#include <ctype.h>
 
 #include "util/list.h"
 #include "util/cache.h"