diff --git a/Documentation/perf_counter/builtin-record.c b/Documentation/perf_counter/builtin-record.c
index 3a3deb3fbbc0..ddfdcf86fb20 100644
--- a/Documentation/perf_counter/builtin-record.c
+++ b/Documentation/perf_counter/builtin-record.c
@@ -15,7 +15,6 @@
 #include <fcntl.h>
 #include <stdio.h>
 #include <errno.h>
-#include <ctype.h>
 #include <time.h>
 #include <sched.h>
 #include <pthread.h>