1 files changed, 2 insertions, 0 deletions
diff --git a/src/build.c b/src/build.c
index a25c9c6d8..74c5319ca 100644
--- a/src/build.c
+++ b/src/build.c
@@ -1267,6 +1267,8 @@ void sqlite3AddReturning(Parse *pParse, ExprList *pList){
   Returning *pRet;
   Hash *pHash;
   sqlite3 *db = pParse->db;
+  assert( !pParse->bReturning );
+  pParse->bReturning = 1;
   pRet = sqlite3DbMallocZero(db, sizeof(*pRet));
   if( pRet==0 ){
     sqlite3ExprListDelete(db, pList);