1 files changed, 1 insertions, 3 deletions
diff --git a/src/rt/rust_stack.h b/src/rt/rust_stack.h
index 51b884e47b1..3b34b91e309 100644
--- a/src/rt/rust_stack.h
+++ b/src/rt/rust_stack.h
@@ -22,9 +22,7 @@ struct stk_seg {
     stk_seg *next;
     uintptr_t end;
     unsigned int valgrind_id;
-#ifndef _LP64
-    uint32_t pad;
-#endif
+    uint8_t is_big;
 
     rust_task *task;
     uintptr_t canary;