diff --git a/ext/blobio/blob.go b/ext/blobio/blob.go
index a9a9c26..bf528ec 100644
--- a/ext/blobio/blob.go
+++ b/ext/blobio/blob.go
@@ -30,9 +30,9 @@ import (
 //
 // https://sqlite.org/c3ref/blob.html
 func Register(db *sqlite3.Conn) {
-	db.CreateFunction("readblob", 6, sqlite3.DIRECTONLY, readblob)
-	db.CreateFunction("writeblob", 6, sqlite3.DIRECTONLY, writeblob)
-	db.CreateFunction("openblob", -1, sqlite3.DIRECTONLY, openblob)
+	db.CreateFunction("readblob", 6, 0, readblob)
+	db.CreateFunction("writeblob", 6, 0, writeblob)
+	db.CreateFunction("openblob", -1, 0, openblob)
 }
 
 // OpenCallback is the type for the openblob callback.