1 files changed, 1 insertions, 0 deletions
diff --git a/immutables/_map.h b/immutables/_map.h
index 41cfa13..6e87c4b 100644
--- a/immutables/_map.h
+++ b/immutables/_map.h
@@ -22,6 +22,7 @@ typedef struct {
     MapNode *h_root;
     PyObject *h_weakreflist;
     Py_ssize_t h_count;
+    Py_hash_t h_hash;
 } MapObject;