diff --git a/error.go b/error.go
index 1f14aba..7d29b4b 100644
--- a/error.go
+++ b/error.go
@@ -72,7 +72,7 @@ func (err ErrNoExtended) Error() string {
 }
 
 // Error return error message.
-func (err Error) Error() string {
+func (err *Error) Error() string {
 	if err.err != "" {
 		return err.err
 	}
diff --git a/sqlite3.go b/sqlite3.go
index 5df6c8b..6230b29 100644
--- a/sqlite3.go
+++ b/sqlite3.go
@@ -399,7 +399,7 @@ func (c *SQLiteConn) AutoCommit() bool {
 	return int(C.sqlite3_get_autocommit(c.db)) != 0
 }
 
-func (c *SQLiteConn) lastError() Error {
+func (c *SQLiteConn) lastError() *Error {
 	rv := C.sqlite3_errcode(c.db)
 	if rv == C.SQLITE_OK {
 		return nil