diff --git a/sqlite3.go b/sqlite3.go
index 38eb942..8757a75 100644
--- a/sqlite3.go
+++ b/sqlite3.go
@@ -164,6 +164,9 @@ func (c *SQLiteConn) Exec(query string, args []driver.Value) (driver.Result, err
 		var res driver.Result
 		if s.(*SQLiteStmt).s != nil {
 			na := s.NumInput()
+			if len(args) < na {
+				return nil, errors.New("args is not enough to execute query")
+			}
 			res, err = s.Exec(args[:na])
 			if err != nil && err != driver.ErrSkip {
 				s.Close()
diff --git a/sqlite3_test.go b/sqlite3_test.go
index 581d289..9cc5a0e 100644
--- a/sqlite3_test.go
+++ b/sqlite3_test.go
@@ -14,7 +14,7 @@ import (
 	"testing"
 	"time"
 
-	"./sqlite3_test"
+	"github.com/mattn/go-sqlite3/sqlite3_test"
 )
 
 func TempFilename() string {