diff --git a/freelist/freelist.c b/freelist/freelist.c
index 7b181ae..35ffa41 100644
--- a/freelist/freelist.c
+++ b/freelist/freelist.c
@@ -1,7 +1,8 @@
 #include "freelist.h"
 
+/* Header block used to keep track of all the free blocks */
 struct __attribute__((packed)) FreeListBlock {
-    uint16_t next_offset;
+    uint16_t next_offset; /* May be 8, 16, 32, 64, whatever */
 };
 
 /* Align to nearest multiple of align */
@@ -9,7 +10,7 @@ static inline size_t align_up_to(size_t n, size_t align) {
     return (n + align - 1) & ~(align - 1);
 }
 
-// Convert pointer -> 1-based offset (0 means NULL)
+/* Convert pointer -> 1-based offset (0 means NULL) */
 static inline uint32_t ptr_to_offset(FreeList *fl, void *ptr) {
     if (!ptr)
         return 0; // NULL maps to 0
@@ -17,7 +18,7 @@ static inline uint32_t ptr_to_offset(FreeList *fl, void *ptr) {
     return (uint32_t)(diff / fl->size) + 1;
 }
 
-// Convert 1-based offset -> pointer (0 means NULL)
+/* Convert 1-based offset -> pointer (0 means NULL) */
 static inline void *offset_to_ptr(FreeList *fl, uint32_t offset) {
     if (offset == 0)
         return NULL; // 0 = invalid/null