1 files changed, 1 insertions, 0 deletions
diff --git a/src/window.c b/src/window.c
index 56de38ba3..a8081aa24 100644
--- a/src/window.c
+++ b/src/window.c
@@ -785,6 +785,7 @@ static int selectWindowRewriteExprCb(Walker *pWalker, Expr *pExpr){
       }
       /* no break */ deliberate_fall_through
 
+    case TK_IF_NULL_ROW:
     case TK_AGG_FUNCTION:
     case TK_COLUMN: {
       int iCol = -1;