Index: sys/sys/procdesc.h
===================================================================
--- sys/sys/procdesc.h  (revision 269194)
+++ sys/sys/procdesc.h  (working copy)
@@ -48,7 +48,7 @@
  * Locking key:
  * (c) - Constant after initial setup.
  * (p) - Protected by the process descriptor mutex.
- * (r) - Atomic eference count.
+ * (r) - Atomic reference count.
  * (s) - Protected by selinfo.
  * (t) - Protected by the proctree_lock
  */