diff --git a/frontend/src/i18n/is.json b/frontend/src/i18n/is.json
index e67a4bab..ac114dc9 100644
--- a/frontend/src/i18n/is.json
+++ b/frontend/src/i18n/is.json
@@ -102,6 +102,7 @@
     "username": "Notendanafn",
     "usernameTaken": "Þetta norendanafn er þegar í notkun",
     "wrongCredentials": "Rangar notendaupplýsingar",
+    "passwordTooShort": "Password must be at least {min} characters",
     "logout_reasons": {
       "inactivity": "You have been logged out due to inactivity."
     }