diff --git a/lib/filesystem.c b/lib/filesystem.c
index 8174e75..04abbed 100644
--- a/lib/filesystem.c
+++ b/lib/filesystem.c
@@ -1,6 +1,6 @@
 #include "filesystem.h"
 
-int filesystem_read(char *path, uint8_t **file_content, off_t *file_size) {
+int filesystem_read(char *path, byte **file_content, off_t *file_size) {
   int file_descriptor = open(path, O_RDONLY);
   if (file_descriptor == -1) {
     return -1;
@@ -15,7 +15,7 @@ int filesystem_read(char *path, uint8_t **file_content, off_t *file_size) {
   return 0;
 }
 
-int filesystem_write(char *path, uint8_t *file_content, off_t file_size) {
+int filesystem_write(char *path, byte *file_content, off_t file_size) {
   int file_descriptor = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
   if (file_descriptor == -1) {
     return -1;
diff --git a/lib/filesystem.h b/lib/filesystem.h
index 7d05747..824a8c6 100644
--- a/lib/filesystem.h
+++ b/lib/filesystem.h
@@ -13,6 +13,8 @@
 
 #include "string.h"
 
+typedef uint8_t byte;
+
 /**
  * @brief Read the content of a file.
  *
@@ -24,7 +26,7 @@
  * @retval 0 for success.
  * @since v1.0.0
  */
-int filesystem_read(char *path, uint8_t **file_content, off_t *file_size);
+int filesystem_read(char *path, byte **file_content, off_t *file_size);
 
 /**
  * @brief Write the content to a file.
@@ -37,7 +39,7 @@ int filesystem_read(char *path, uint8_t **file_content, off_t *file_size);
  * @retval 0 for success.
  * @since v1.0.0
  */
-int filesystem_write(char *path, uint8_t *file_content, off_t file_size);
+int filesystem_write(char *path, byte *file_content, off_t file_size);
 
 /**
  * @brief Get the mimetype of a file.