diff --git a/src/include/access/brin_tuple.h b/src/include/access/brin_tuple.h
index 00f55e7..a9e6f81 100644
--- a/src/include/access/brin_tuple.h
+++ b/src/include/access/brin_tuple.h
@@ -52,7 +52,7 @@ typedef struct BrinTuple
 	BlockNumber bt_blkno;
 
 	/* ---------------
-	 * mt_info is laid out in the following fashion:
+	 * bt_info is laid out in the following fashion:
 	 *
 	 * 7th (high) bit: has nulls
 	 * 6th bit: is placeholder tuple