diff --git a/src/FbTk/Timer.cc b/src/FbTk/Timer.cc
index 385b3423..773ef07b 100644
--- a/src/FbTk/Timer.cc
+++ b/src/FbTk/Timer.cc
@@ -45,6 +45,8 @@
   #include <assert.h>
 #endif
 
+#include <string.h>
+
 namespace FbTk {
 
 Timer::TimerList Timer::m_timerlist;