diff --git a/src/frontend/mosh-server.cc b/src/frontend/mosh-server.cc
index fa1b5ef..b6c6c26 100644
--- a/src/frontend/mosh-server.cc
+++ b/src/frontend/mosh-server.cc
@@ -36,6 +36,7 @@
 #include <errno.h>
 #include <locale.h>
 #include <string.h>
+#include <strings.h>
 #include <sstream>
 #include <termios.h>
 #include <unistd.h>