Index: kernel/generic/src/proc/scheduler.c
===================================================================
--- kernel/generic/src/proc/scheduler.c	(revision 583c2a3d5f5f8c120323f09f1d4e2d68b95c8ef2)
+++ kernel/generic/src/proc/scheduler.c	(revision 3a4a944f9be64d2ec90b47d2a2e5502e505d46a4)
@@ -68,5 +68,5 @@
 static void scheduler_separated_stack(void);
 
-atomic_t nrdy;  /**< Number of ready threads in the system. */
+atomic_size_t nrdy;  /**< Number of ready threads in the system. */
 
 /** Carry out actions before new task runs. */