diff --git a/src/Cpu_unix.cpp b/src/Cpu_unix.cpp
index 925e0c0a..5d3a6d64 100644
--- a/src/Cpu_unix.cpp
+++ b/src/Cpu_unix.cpp
@@ -25,6 +25,7 @@
 #include <pthread.h>
 #include <sched.h>
 #include <unistd.h>
+#include <string.h>
 
 
 #include "Cpu.h"