diff --git a/sys/powerpc/include/pcb.h b/sys/powerpc/include/pcb.h
index 67c8cacc32a..5e6c1581a12 100644
--- a/sys/powerpc/include/pcb.h
+++ b/sys/powerpc/include/pcb.h
@@ -41,7 +41,7 @@
 
 #ifndef _STANDALONE
 struct pcb {
-	register_t	pcb_context[20];	/* non-volatile r14-r31 */
+	register_t	pcb_context[20];	/* non-volatile r12-r31 */
 	register_t	pcb_cr;			/* Condition register */
 	register_t	pcb_sp;			/* stack pointer */
 	register_t	pcb_toc;		/* toc pointer */