diff --git a/kernel/src/allocator/kalloc.zig b/kernel/src/allocator/kalloc.zig
index c72ee54..391862b 100644
--- a/kernel/src/allocator/kalloc.zig
+++ b/kernel/src/allocator/kalloc.zig
@@ -1,5 +1,5 @@
 const std = @import("std");
 
-var buf: [1024*1024]u8 = undefined;
+var buf: [512*1024]u8 = undefined;
 pub var KAlloc = std.heap.FixedBufferAllocator.init(&buf);
 // pub var KAlloc = std.heap.GeneralPurposeAllocator(.{.thread_safe=false}){.backing_allocator = &GlobAlloc.allocator};