diff --git a/src/arch/riscv32.rs b/src/arch/riscv32.rs
index 54e5a01..16303be 100644
--- a/src/arch/riscv32.rs
+++ b/src/arch/riscv32.rs
@@ -44,7 +44,7 @@
 use core::mem;
 use stack::Stack;
 
-pub const STACK_ALIGNMENT: usize = 16;
+pub const STACK_ALIGNMENT: usize = 4096;
 
 #[derive(Debug, Clone, Copy)]
 #[repr(transparent)]