diff --git a/xwords4/android/XWords4/src/org/eehouse/android/xw4/DBHelper.java b/xwords4/android/XWords4/src/org/eehouse/android/xw4/DBHelper.java
index e9b02e756..3796f9bb2 100644
--- a/xwords4/android/XWords4/src/org/eehouse/android/xw4/DBHelper.java
+++ b/xwords4/android/XWords4/src/org/eehouse/android/xw4/DBHelper.java
@@ -109,7 +109,7 @@ public class DBHelper extends SQLiteOpenHelper {
 
     private static final String[][] s_summaryColsAndTypes = {
         { "rowid",      "INTEGER PRIMARY KEY AUTOINCREMENT" }
-        ,{ VISID,        "INTEGER" }
+        ,{ VISID,        "INTEGER" } // user-visible ID
         ,{ GAME_NAME,    "TEXT" }
         ,{ NUM_MOVES,   "INTEGER" }
         ,{ TURN,        "INTEGER" }