diff --git a/src/xenia/base/memory.h b/src/xenia/base/memory.h
index a5c337383..30b52ef77 100644
--- a/src/xenia/base/memory.h
+++ b/src/xenia/base/memory.h
@@ -10,6 +10,7 @@
 #ifndef XENIA_BASE_MEMORY_H_
 #define XENIA_BASE_MEMORY_H_
 
+#include <cstdlib>
 #include <cstring>
 #include <functional>
 #include <string>