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-rw-r--r--src/rt/rust_task.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/rt/rust_task.h b/src/rt/rust_task.h
index 3d5cbff9910..3339ad42bfd 100644
--- a/src/rt/rust_task.h
+++ b/src/rt/rust_task.h
@@ -24,6 +24,7 @@ struct chan_handle {
 struct rust_box;
 
 struct stk_seg {
+    stk_seg *prev;
     stk_seg *next;
     uintptr_t end;
     unsigned int valgrind_id;