diff --git a/sortix/kernel.cpp b/sortix/kernel.cpp
index cba02bc1..6bb88fc1 100644
--- a/sortix/kernel.cpp
+++ b/sortix/kernel.cpp
@@ -60,7 +60,7 @@
 using namespace Maxsi;
 
 // Keep the stack size aligned with $CPU/base.s
-extern "C" { size_t stack[64*1024] = {0}; }
+extern "C" { size_t stack[64*1024 / sizeof(size_t)] = {0}; }
 
 namespace Sortix {