diff --git a/kernel/src/arch/mipsel/board/malta/consts.rs b/kernel/src/arch/mipsel/board/malta/consts.rs
index 156496a..5df1b15 100644
--- a/kernel/src/arch/mipsel/board/malta/consts.rs
+++ b/kernel/src/arch/mipsel/board/malta/consts.rs
@@ -1,3 +1,3 @@
 /// board specific constants
-pub const MEMORY_END: usize = 0x8a80_0000;
-pub const KERNEL_HEAP_SIZE: usize = 0x0444_0000;
+pub const MEMORY_END: usize = 0x8400_0000;
+pub const KERNEL_HEAP_SIZE: usize = 0x0200_0000;