diff --git a/bl1/aarch64/bl1_exceptions.S b/bl1/aarch64/bl1_exceptions.S
index ee66ef0..5415d39 100644
--- a/bl1/aarch64/bl1_exceptions.S
+++ b/bl1/aarch64/bl1_exceptions.S
@@ -213,6 +213,7 @@
 	b	debug_loop
 #endif
 
+	mov	x0, x20
 	bl	bl1_plat_prepare_exit
 
 	ldp	x6, x7, [x20, #(ENTRY_POINT_INFO_ARGS_OFFSET + 0x30)]