diff --git a/kernel_headers/sdcc/include/zos_errors.h b/kernel_headers/sdcc/include/zos_errors.h
index 134a242..d012966 100644
--- a/kernel_headers/sdcc/include/zos_errors.h
+++ b/kernel_headers/sdcc/include/zos_errors.h
@@ -6,32 +6,32 @@
 #pragma once
 
 typedef enum {
-    ERR_SUCCESS = 0,
-    ERR_FAILURE,
-    ERR_NOT_IMPLEMENTED,
-    ERR_NOT_SUPPORTED,
-    ERR_NO_SUCH_ENTRY,
-    ERR_INVALID_SYSCALL,
-    ERR_INVALID_PARAMETER,
-    ERR_INVALID_VIRT_PAGE,
-    ERR_INVALID_PHYS_ADDRESS,
-    ERR_INVALID_OFFSET,
-    ERR_INVALID_NAME,
-    ERR_INVALID_PATH,
-    ERR_INVALID_FILESYSTEM,
-    ERR_INVALID_FILEDEV,
-    ERR_PATH_TOO_LONG,
-    ERR_ALREADY_EXIST,
-    ERR_ALREADY_OPENED,
-    ERR_ALREADY_MOUNTED,
-    ERR_READ_ONLY,
-    ERR_BAD_MODE,
-    ERR_CANNOT_REGISTER_MORE,
-    ERR_NO_MORE_ENTRIES,
-    ERR_NO_MORE_MEMORY,
-    ERR_NOT_A_DIR,
-    ERR_NOT_A_FILE,
-    ERR_ENTRY_CORRUPTED,
-    ERR_DIR_NOT_EMPTY,
+    ERR_SUCCESS                 = 0,
+    ERR_FAILURE                 = 1,
+    ERR_NOT_IMPLEMENTED         = 2,
+    ERR_NOT_SUPPORTED           = 3,
+    ERR_NO_SUCH_ENTRY           = 4,
+    ERR_INVALID_SYSCALL         = 5,
+    ERR_INVALID_PARAMETER       = 6,
+    ERR_INVALID_VIRT_PAGE       = 7,
+    ERR_INVALID_PHYS_ADDRESS    = 8,
+    ERR_INVALID_OFFSET          = 9,
+    ERR_INVALID_NAME            = 10,
+    ERR_INVALID_PATH            = 11,
+    ERR_INVALID_FILESYSTEM      = 12,
+    ERR_INVALID_FILEDEV         = 13,
+    ERR_PATH_TOO_LONG           = 14,
+    ERR_ALREADY_EXIST           = 15,
+    ERR_ALREADY_OPENED          = 16,
+    ERR_ALREADY_MOUNTED         = 17,
+    ERR_READ_ONLY               = 18,
+    ERR_BAD_MODE                = 19,
+    ERR_CANNOT_REGISTER_MORE    = 21,
+    ERR_NO_MORE_ENTRIES         = 22,
+    ERR_NO_MORE_MEMORY          = 23,
+    ERR_NOT_A_DIR               = 24,
+    ERR_NOT_A_FILE              = 25,
+    ERR_ENTRY_CORRUPTED         = 26,
+    ERR_DIR_NOT_EMPTY           = 27,
 } zos_err_t;
 
diff --git a/kernel_headers/z88dk-z80asm/zos_err.asm b/kernel_headers/z88dk-z80asm/zos_err.asm
index 15965cd..b9384d2 100644
--- a/kernel_headers/z88dk-z80asm/zos_err.asm
+++ b/kernel_headers/z88dk-z80asm/zos_err.asm
@@ -7,33 +7,33 @@
 
     DEFGROUP
     {
-        ERR_SUCCESS = 0,
-        ERR_FAILURE,
-        ERR_NOT_IMPLEMENTED,
-        ERR_NOT_SUPPORTED,
-        ERR_NO_SUCH_ENTRY,
-        ERR_INVALID_SYSCALL,
-        ERR_INVALID_PARAMETER,
-        ERR_INVALID_VIRT_PAGE,
-        ERR_INVALID_PHYS_ADDRESS,
-        ERR_INVALID_OFFSET,
-        ERR_INVALID_NAME,
-        ERR_INVALID_PATH,
-        ERR_INVALID_FILESYSTEM,
-        ERR_INVALID_FILEDEV,
-        ERR_PATH_TOO_LONG,
-        ERR_ALREADY_EXIST,
-        ERR_ALREADY_OPENED,
-        ERR_ALREADY_MOUNTED,
-        ERR_READ_ONLY,
-        ERR_BAD_MODE,
-        ERR_CANNOT_REGISTER_MORE,
-        ERR_NO_MORE_ENTRIES,
-        ERR_NO_MORE_MEMORY,
-        ERR_NOT_A_DIR,
-        ERR_NOT_A_FILE,
-        ERR_ENTRY_CORRUPTED,
-        ERR_DIR_NOT_EMPTY,
+        ERR_SUCCESS                = 0,
+        ERR_FAILURE                = 1,
+        ERR_NOT_IMPLEMENTED        = 2,
+        ERR_NOT_SUPPORTED          = 3,
+        ERR_NO_SUCH_ENTRY          = 4,
+        ERR_INVALID_SYSCALL        = 5,
+        ERR_INVALID_PARAMETER      = 6,
+        ERR_INVALID_VIRT_PAGE      = 7,
+        ERR_INVALID_PHYS_ADDRESS   = 8,
+        ERR_INVALID_OFFSET         = 9,
+        ERR_INVALID_NAME           = 10,
+        ERR_INVALID_PATH           = 11,
+        ERR_INVALID_FILESYSTEM     = 12,
+        ERR_INVALID_FILEDEV        = 13,
+        ERR_PATH_TOO_LONG          = 14,
+        ERR_ALREADY_EXIST          = 15,
+        ERR_ALREADY_OPENED         = 16,
+        ERR_ALREADY_MOUNTED        = 17,
+        ERR_READ_ONLY              = 18,
+        ERR_BAD_MODE               = 19,
+        ERR_CANNOT_REGISTER_MORE   = 20,
+        ERR_NO_MORE_ENTRIES        = 21,
+        ERR_NO_MORE_MEMORY         = 22,
+        ERR_NOT_A_DIR              = 23,
+        ERR_NOT_A_FILE             = 24,
+        ERR_ENTRY_CORRUPTED        = 25,
+        ERR_DIR_NOT_EMPTY          = 26,
     }
 
     ENDIF ; ZOS_ERR_HEADER