diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 296390541030..1f749a783d8f 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -4,7 +4,6 @@
 
 #include <linux/list.h>
 #include <stdbool.h>
-#include <stddef.h>
 #include <linux/perf_event.h>
 #include <linux/types.h>
 #include <internal/evsel.h>