diff --git a/crates/oidc-client/src/error.rs b/crates/oidc-client/src/error.rs
index cb667c6e..8264f188 100644
--- a/crates/oidc-client/src/error.rs
+++ b/crates/oidc-client/src/error.rs
@@ -452,8 +452,8 @@ pub enum UserInfoError {
     DecodeResponseContentType(#[from] ToStrError),
 
     /// The content-type is not valid.
-    #[error("invalid response content-type: {0}")]
-    InvalidResponseContentTypeValue(#[from] mime::FromStrError),
+    #[error("invalid response content-type")]
+    InvalidResponseContentTypeValue,
 
     /// The content-type is not the one that was expected.
     #[error("unexpected response content-type {got:?}, expected {expected:?}")]
diff --git a/crates/oidc-client/src/requests/userinfo.rs b/crates/oidc-client/src/requests/userinfo.rs
index 89a7698b..2b6dc5fe 100644
--- a/crates/oidc-client/src/requests/userinfo.rs
+++ b/crates/oidc-client/src/requests/userinfo.rs
@@ -19,8 +19,8 @@
 use std::collections::HashMap;
 
 use bytes::Bytes;
-use headers::{Authorization, HeaderMapExt, HeaderValue};
-use http::header::{ACCEPT, CONTENT_TYPE};
+use headers::{Authorization, ContentType, HeaderMapExt, HeaderValue};
+use http::header::ACCEPT;
 use mas_http::CatchHttpCodesLayer;
 use mas_jose::claims;
 use mime::Mime;
@@ -101,10 +101,10 @@ pub async fn fetch_userinfo(
 
     let content_type: Mime = userinfo_response
         .headers()
-        .get(CONTENT_TYPE)
+        .typed_try_get::<ContentType>()
+        .map_err(|_| UserInfoError::InvalidResponseContentTypeValue)?
         .ok_or(UserInfoError::MissingResponseContentType)?
-        .to_str()?
-        .parse()?;
+        .into();
 
     if content_type.essence_str() != expected_content_type {
         return Err(UserInfoError::UnexpectedResponseContentType {