diff --git a/kernel/inc/proc/thread.h b/kernel/inc/proc/thread.h
index 46879aa..aa8e9d7 100644
--- a/kernel/inc/proc/thread.h
+++ b/kernel/inc/proc/thread.h
@@ -19,10 +19,6 @@
 #include "utils/stdtypes.h"
 #include "platform/cpu.h"
 
-typedef enum {
-    THREAD_NONE = -1
-} thread_standard_E;
-
 typedef struct thread_descriptor_T thread_descriptor_T;
 typedef const thread_descriptor_T* thread_t;