diff --git a/build.rs b/build.rs
index 127506b..e9a9d6e 100644
--- a/build.rs
+++ b/build.rs
@@ -4,8 +4,8 @@ include!("src/enums.rs");
 include!("src/consts.rs");
 include!("src/pairings.rs");
 
-#[allow(unexpected_cfgs)]
 #[cfg(not(target_os = "riscv32imac-unknown-none-elf"))]
+#[allow(unexpected_cfgs)]
 fn main() {
     use std::{fs, io::Write, path::Path};
     #[derive(Debug, Clone, PartialEq, Eq)]
@@ -230,8 +230,9 @@ fn main() {
 
     g2_file.write_all(&g2_bytes).unwrap();
 }
-#[allow(unexpected_cfgs)]
+
 #[cfg(target_os = "riscv32imac-unknown-none-elf")]
+#[allow(unexpected_cfgs)]
 fn main() {
     // Binaries cannot be built in a RISC-V environment
 }