diff --git a/mysql-test/r/union.result b/mysql-test/r/union.result
index 663793e0b5e..b1dea29304e 100644
--- a/mysql-test/r/union.result
+++ b/mysql-test/r/union.result
@@ -1195,3 +1195,8 @@ a	b
 2	b
 3	c
 drop table t1;
+set @val:=6;
+select concat('value is: ', @val) union select 'some text';
+concat('value is: ', @val)
+value is: 6
+some text
diff --git a/mysql-test/t/union.test b/mysql-test/t/union.test
index 5ff22f1d6b6..7924d4184ce 100644
--- a/mysql-test/t/union.test
+++ b/mysql-test/t/union.test
@@ -729,3 +729,9 @@ select * from ((select * from t1 limit 1) union (select * from t1 limit 1) union
 select * from ((((select * from t1))) union (select * from t1) union (select * from t1)) a;
 select * from ((select * from t1) union (((select * from t1))) union (select * from t1)) a;
 drop table t1;
+
+#
+# Bugs#6519 UNION with collation binary and latin1_swedish_ci fails
+#
+set @val:=6;
+select concat('value is: ', @val) union select 'some text';