diff --git a/src/FaacEncoder.cpp b/src/FaacEncoder.cpp
index 1100226..3ab1805 100644
--- a/src/FaacEncoder.cpp
+++ b/src/FaacEncoder.cpp
@@ -36,7 +36,7 @@
 // compile the whole file only if faac support configured in
 #ifdef HAVE_FAAC_LIB
 
-
+#include <string.h>
 
 #include "Exception.h"
 #include "Util.h"