diff --git a/nx/source/kernel/thread.c b/nx/source/kernel/thread.c
index fcc6284e..c4f4c01e 100644
--- a/nx/source/kernel/thread.c
+++ b/nx/source/kernel/thread.c
@@ -53,7 +53,7 @@ Result threadCreate(
 
         if (R_SUCCEEDED(rc))
         {
-            u64 stack_top = ((u64)stack_mirror) + t->stack_sz - sizeof(ThreadEntryArgs);
+            u64 stack_top = ((u64)stack_mirror) + stack_sz - sizeof(ThreadEntryArgs);
             ThreadEntryArgs* args = (ThreadEntryArgs*) stack_top;
             Handle handle;