diff --git a/src/arch/i386/include/virtaddr.h b/src/arch/i386/include/virtaddr.h
index 3bc02833..06625591 100644
--- a/src/arch/i386/include/virtaddr.h
+++ b/src/arch/i386/include/virtaddr.h
@@ -15,6 +15,7 @@
 #ifndef ASSEMBLY
 
 #include "stdint.h"
+#include "string.h"
 
 #ifndef KEEP_IT_REAL