diff --git a/backend/src/main/resources/i18n/messages.properties b/backend/src/main/resources/i18n/messages.properties
index 50723320a..a2ecaf585 100644
--- a/backend/src/main/resources/i18n/messages.properties
+++ b/backend/src/main/resources/i18n/messages.properties
@@ -919,7 +919,7 @@ tooltip.proxyCount=Limits use of proxying either to service providers downstream
 tooltip.revocationLifetime=The revocation lifetime used when revoking the full chain (see CHAIN above).
 tooltip.revocationMethod=The revocation method: CHAIN refers to revoking whole chain of tokens (from authorization code to all access/refresh tokens) and TOKEN refers to revoking single token
 tooltip.accessTokenLifetime.oauth=Lifetime of access token issued to client (OAUTH)
-tooltip.accessTokenType.oauth=Format of access token. Supported values are ?JWT? or nothing/empty/null implying opaque tokens.
+tooltip.accessTokenType.oauth=Format of access token. Supported values are 'JWT' or nothing/empty/null implying opaque tokens.
 tooltip.allowPKCEPlain.oauth=Whether client is allowed to use PKCE code challenge method plain (OAUTH)
 tooltip.enforceRefreshTokenRotation=Whether to enforce refresh token rotation. If enabled the refresh token is revoked whenever it is used for issuing a new refresh token.
 tooltip.forcePKCE.oauth=Whether client is required to use PKCE (OAUTH)