diff --git a/src/libotutil/ot-unix-utils.c b/src/libotutil/ot-unix-utils.c
index 551cc8789d..eee3a44f57 100644
--- a/src/libotutil/ot-unix-utils.c
+++ b/src/libotutil/ot-unix-utils.c
@@ -30,7 +30,6 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <linux/capability.h>
-#include <linux/prctl.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/prctl.h>