diff --git a/Src/ROMSet.h b/Src/ROMSet.h
index b6ab048..01dbd92 100644
--- a/Src/ROMSet.h
+++ b/Src/ROMSet.h
@@ -5,6 +5,7 @@
 #include <string>
 #include <map>
 #include <algorithm>
+#include <cstring>
 
 // Holds a single ROM region
 struct ROM