1 files changed, 3 insertions, 1 deletions
diff --git a/src/sqliteInt.h b/src/sqliteInt.h
index 58d64ba2f..4519a472a 100644
--- a/src/sqliteInt.h
+++ b/src/sqliteInt.h
@@ -2468,7 +2468,9 @@ struct Expr {
 */
 struct ExprList {
   int nExpr;             /* Number of expressions on the list */
-  int nAlloc;            /* Number of a[] slots allocated */
+#ifdef SQLITE_DEBUG
+  u8 bFixedSize;         /* May not be expanded using sqlite3ExprListAppend() */
+#endif
   struct ExprList_item { /* For each expression in the list */
     Expr *pExpr;            /* The parse tree for this expression */
     char *zName;            /* Token associated with this expression */