diff --git a/src/main.cpp b/src/main.cpp
index 709310697..6fde2827c 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -28,6 +28,7 @@
 #define L10N                                           // Localization complete.
 
 #include <iostream>
+#include <cstring>
 #include <stdlib.h>
 
 #ifdef CYGWIN