diff --git a/clause/expression.go b/clause/expression.go
index 90ba3a7d..893f6bcb 100644
--- a/clause/expression.go
+++ b/clause/expression.go
@@ -69,7 +69,7 @@ func (expr Expr) Build(builder Builder) {
 	}
 
 	if idx < len(expr.Vars) {
-		for _, v := range expr.Vars[idx+1:] {
+		for _, v := range expr.Vars[idx:] {
 			builder.AddVar(builder, v)
 		}
 	}