diff --git a/clientv3/txn.go b/clientv3/txn.go
index 170fa6ba7..6e80dbb74 100644
--- a/clientv3/txn.go
+++ b/clientv3/txn.go
@@ -85,8 +85,8 @@ func (txn *txn) If(cs ...Cmp) Txn {
 
 	txn.cif = true
 
-	for _, cmp := range cs {
-		txn.cmps = append(txn.cmps, (*pb.Compare)(&cmp))
+	for i := range cs {
+		txn.cmps = append(txn.cmps, (*pb.Compare)(&cs[i]))
 	}
 
 	return txn