diff --git a/kernel/include/utils/Addresses.h b/kernel/include/utils/Addresses.h
index e006d7a0..23752357 100644
--- a/kernel/include/utils/Addresses.h
+++ b/kernel/include/utils/Addresses.h
@@ -1,12 +1,13 @@
 #pragma once
 
+#include <stddef.h>
 #include <stdint.h>
 
 #ifndef PAGE_SIZE
 #define PAGE_SIZE 4096
 #endif
 
-inline uintptr_t get_top_of_stack(uintptr_t bottom, uintptr_t stack_pages)
+inline uintptr_t get_top_of_stack(uintptr_t bottom, size_t stack_pages)
 {
     return bottom + (stack_pages * PAGE_SIZE) - sizeof(uintptr_t);
 }