diff --git a/legacy/eina/src/lib/eina_cpu.c b/legacy/eina/src/lib/eina_cpu.c
index 26ead3a97b..ba1803279c 100644
--- a/legacy/eina/src/lib/eina_cpu.c
+++ b/legacy/eina/src/lib/eina_cpu.c
@@ -28,6 +28,7 @@
 #  include <unistd.h>
 # elif defined (__FreeBSD__) || defined (__OpenBSD__) || defined (__NetBSD__) || defined (__DragonFly__) || defined (__MacOSX__)
 #  include <unistd.h>
+#  include <sys/param.h>
 #  include <sys/sysctl.h>
 # elif defined (__linux__)
 #  define _GNU_SOURCE