diff --git a/plat/common/aarch64/platform_helpers.S b/plat/common/aarch64/platform_helpers.S
index a134ded..68bda22 100644
--- a/plat/common/aarch64/platform_helpers.S
+++ b/plat/common/aarch64/platform_helpers.S
@@ -98,7 +98,7 @@
 
 	/* -----------------------------------------------------
 	 * Placeholder function which should be redefined by
-	 * each platform. This function should preserve x10.
+	 * each platform. This function should preserve x19 - x29.
 	 * -----------------------------------------------------
 	 */
 func plat_reset_handler