diff --git a/arch/rv32i/src/lib.rs b/arch/rv32i/src/lib.rs
index ff640ac40f..563c49c6e0 100644
--- a/arch/rv32i/src/lib.rs
+++ b/arch/rv32i/src/lib.rs
@@ -444,6 +444,7 @@ pub unsafe fn semihost_command(command: usize, arg0: usize, arg1: usize) -> usiz
     let res;
     asm!(
     "
+      .balign 16
       .option push
       .option norelax
       .option norvc