diff --git a/lib/libkvm/kvm_minidump_amd64.c b/lib/libkvm/kvm_minidump_amd64.c
index c43175655ea..bf5c468ccc1 100644
--- a/lib/libkvm/kvm_minidump_amd64.c
+++ b/lib/libkvm/kvm_minidump_amd64.c
@@ -37,6 +37,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/mman.h>
 #include <sys/fnv_hash.h>
 #include <stdlib.h>
+#include <strings.h>
 #include <unistd.h>
 #include <nlist.h>
 #include <kvm.h>
diff --git a/lib/libkvm/kvm_minidump_i386.c b/lib/libkvm/kvm_minidump_i386.c
index c7d1f91773c..de50866e7f0 100644
--- a/lib/libkvm/kvm_minidump_i386.c
+++ b/lib/libkvm/kvm_minidump_i386.c
@@ -37,6 +37,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/mman.h>
 #include <sys/fnv_hash.h>
 #include <stdlib.h>
+#include <strings.h>
 #include <unistd.h>
 #include <nlist.h>
 #include <kvm.h>