diff --git a/cpu/cpu_riscv64.go b/cpu/cpu_riscv64.go
index bd6c128af..ff7da60eb 100644
--- a/cpu/cpu_riscv64.go
+++ b/cpu/cpu_riscv64.go
@@ -7,6 +7,6 @@
 
 package cpu
 
-const cacheLineSize = 32
+const cacheLineSize = 64
 
 func initOptions() {}