diff --git a/lib/http/cookie_jar/mozilla_store.rb b/lib/http/cookie_jar/mozilla_store.rb
index 8cb2a6a..03433a7 100644
--- a/lib/http/cookie_jar/mozilla_store.rb
+++ b/lib/http/cookie_jar/mozilla_store.rb
@@ -136,7 +136,7 @@ def closed?
 
     # Returns the schema version of the database.
     def schema_version
-      @schema_version ||= @db.execute("PRAGMA user_version").first[0]
+      @schema_version ||= @db.execute("PRAGMA user_version").first["user_version"]
     rescue SQLite3::SQLException
       @logger.warn "couldn't get schema version!" if @logger
       return nil