diff --git a/core/allocArea.h b/core/allocArea.h
index edb2135..e65ab48 100644
--- a/core/allocArea.h
+++ b/core/allocArea.h
@@ -20,7 +20,7 @@ void areaInit(vaddr_t firstMemUsed, vaddr_t lastUsed, vaddr_t stack_bottom, vadd
 vaddr_t areaAlloc(unsigned int nbPages, uint32_t flags);
 
 /**
- * Free a vietual area
+ * Free a virtual area
  **/
 int areaFree(vaddr_t addr);
 
diff --git a/core/uaccess.h b/core/uaccess.h
index bf97293..53b619f 100644
--- a/core/uaccess.h
+++ b/core/uaccess.h
@@ -1,5 +1,6 @@
 #pragma once
 #include "types.h"
+#include "stddef.h"
 #include "stdarg.h"
 
 int memcpyFromUser(vaddr_t to, uaddr_t from, size_t size);