diff --git a/optimized_implementations/main.riscv b/optimized_implementations/main.riscv
index 88a4197..c4330f9 100644
--- a/optimized_implementations/main.riscv
+++ b/optimized_implementations/main.riscv
@@ -1 +1 @@
-is_prime:mv a0,zero;ret
\ No newline at end of file
+is_prime:li a0,0;ret
\ No newline at end of file