diff --git a/plan/plans/from_test.go b/plan/plans/from_test.go
index 6b9ac7b492..0f6b77bfe7 100644
--- a/plan/plans/from_test.go
+++ b/plan/plans/from_test.go
@@ -70,7 +70,6 @@ func (p *testFromSuit) ClearValue(key fmt.Stringer) {}
 var _ = Suite(&testFromSuit{})
 
 func (p *testFromSuit) SetUpSuite(c *C) {
-	var err error
 	store, err := tidb.NewStore(tidb.EngineGoLevelDBMemory)
 	c.Assert(err, IsNil)
 	p.vars = map[string]interface{}{}