diff --git a/internal/captcha/dwelling_captcha.go b/internal/captcha/dwelling_captcha.go
index 1984507..2ef24cc 100644
--- a/internal/captcha/dwelling_captcha.go
+++ b/internal/captcha/dwelling_captcha.go
@@ -18,11 +18,11 @@ type DwellingCaptcha struct {
 	Captcha
 }
 
-func NewDwellingCaptcha(expiration time.Duration) *DwellingCaptcha {
+func NewDwellingCaptcha(expiry time.Duration) *DwellingCaptcha {
 	return &DwellingCaptcha{
 		Captcha: Captcha{
 			Answer:   GenerateAnswer(),
-			ExpireIn: ExpireDate(expiration)}}
+			ExpireIn: ExpiryDate(expiry)}}
 }
 
 func (c *DwellingCaptcha) GenerateImage() *image.Image {