diff --git a/lib/libkvm/kvm_powerpc64.c b/lib/libkvm/kvm_powerpc64.c
index b027d51b057d..f3a2b244250e 100644
--- a/lib/libkvm/kvm_powerpc64.c
+++ b/lib/libkvm/kvm_powerpc64.c
@@ -41,6 +41,7 @@ __FBSDID("$FreeBSD$");
 #include <limits.h>
 #include <kvm.h>
 #include <stdlib.h>
+#include <string.h>
 
 #include "kvm_private.h"