diff --git a/include/linux/maple_tree.h b/include/linux/maple_tree.h
index 8e1504a81cd2..c2c11004085e 100644
--- a/include/linux/maple_tree.h
+++ b/include/linux/maple_tree.h
@@ -52,9 +52,9 @@
  * bit in the node type.  This is possible by using bit 1 to indicate if bit 2
  * is part of the type or the slot.
  *
- * Once the type is decided, the decision of an allocation range type or a range
- * type is done by examining the immutable tree flag for the MAPLE_ALLOC_RANGE
- * flag.
+ * Once the type is decided, the decision of an allocation range type or a
+ * range type is done by examining the immutable tree flag for the
+ * MT_FLAGS_ALLOC_RANGE flag.
  *
  *  Node types:
  *   0x??1 = Root