diff --git a/kernel/arch/arm64/start.S b/kernel/arch/arm64/start.S
index 750c34a..d61e7bd 100644
--- a/kernel/arch/arm64/start.S
+++ b/kernel/arch/arm64/start.S
@@ -25,10 +25,7 @@
 tmp                     .req x9
 tmp2                    .req x10
 wtmp2                   .req w10
-index                   .req x11
-index_shift             .req x12
-page_table              .req x13
-new_page_table          .req x14
+page_table              .req x11
 
 cpuid                   .req x19
 page_table0             .req x20