diff --git a/src/sfall_opcodes.cc b/src/sfall_opcodes.cc
index 4a43704..d4193d8 100644
--- a/src/sfall_opcodes.cc
+++ b/src/sfall_opcodes.cc
@@ -16,6 +16,7 @@
 #include "sfall_lists.h"
 #include "stat.h"
 #include "svga.h"
+#include <string.h>
 
 namespace fallout {