diff --git a/pkg/captcha/db.go b/pkg/captcha/db.go
index a246ada..be7d315 100644
--- a/pkg/captcha/db.go
+++ b/pkg/captcha/db.go
@@ -103,6 +103,6 @@ func (cdb *CaptchaDB) IsSolved(id ID) (bool, error) {
 	return false, errorNotFound
 }
 
-func (cdb *CaptchaDB) GetExpireInterval() time.Duration {
+func (cdb *CaptchaDB) GetExpiry() time.Duration {
 	return cdb.ExpireIn
 }