Index: kernel/generic/include/proc/thread.h
===================================================================
--- kernel/generic/include/proc/thread.h	(revision c98e6ee244a8e271a395a052069c23bca4f8b538)
+++ kernel/generic/include/proc/thread.h	(revision fb9b0b0531bad96f4f612fbc28c26852439f1adb)
@@ -47,4 +47,5 @@
 #include <mm/tlb.h>
 #include <proc/uarg.h>
+#include <udebug/udebug.h>
 
 #define THREAD_STACK_SIZE	STACK_SIZE
@@ -204,4 +205,10 @@
 	/** Thread's kernel stack. */
 	uint8_t *kstack;
+
+#ifdef CONFIG_UDEBUG
+	/** Debugging stuff */
+	udebug_thread_t udebug;
+#endif
+
 } thread_t;