diff --git a/src/components/users.js b/src/components/users.js
index 068b59e..02b22f0 100644
--- a/src/components/users.js
+++ b/src/components/users.js
@@ -84,7 +84,10 @@ export const UserEdit = props => (
       <TextInput source="displayname" />
       <PasswordInput source="password" autoComplete="new-password" />
       <BooleanInput source="admin" />
-      <BooleanInput source="deactivated" />
+      <BooleanInput
+        source="deactivated"
+        helperText="resources.users.helper.deactivated"
+      />
     </SimpleForm>
   </Edit>
 );
diff --git a/src/i18n/de.js b/src/i18n/de.js
index 6626ae7..1665cc9 100644
--- a/src/i18n/de.js
+++ b/src/i18n/de.js
@@ -28,6 +28,10 @@ export default {
         displayname: "Anzeigename",
         password: "Passwort",
       },
+      helper: {
+        deactivated:
+          "Deaktivierte Nutzer können nicht wieder aktiviert werden.",
+      },
     },
     rooms: {
       name: "Raum |||| Räume",
diff --git a/src/i18n/en.js b/src/i18n/en.js
index 0683213..dd16acc 100644
--- a/src/i18n/en.js
+++ b/src/i18n/en.js
@@ -28,6 +28,9 @@ export default {
         displayname: "Displayname",
         password: "Password",
       },
+      helper: {
+        deactivated: "Deactivated users cannot be reactivated",
+      },
     },
     rooms: {
       name: "Room |||| Rooms",