diff --git a/crates/ruma-federation-api/src/query/get_profile_information/v1.rs b/crates/ruma-federation-api/src/query/get_profile_information/v1.rs
index 9d42fb18..f8f8eb73 100644
--- a/crates/ruma-federation-api/src/query/get_profile_information/v1.rs
+++ b/crates/ruma-federation-api/src/query/get_profile_information/v1.rs
@@ -69,7 +69,11 @@ impl Response {
 }
 
 /// Profile fields to specify in query.
+///
+/// This type can hold an arbitrary string. To check for formats that are not available as a
+/// documented variant here, use its string representation, obtained through `.as_str()`.
 #[derive(Clone, Debug, PartialEq, Eq, StringEnum)]
+#[non_exhaustive]
 pub enum ProfileField {
     /// Display name of the user.
     #[ruma_enum(rename = "displayname")]
@@ -82,3 +86,10 @@ pub enum ProfileField {
     #[doc(hidden)]
     _Custom(String),
 }
+
+impl ProfileField {
+    /// Creates a string slice from this `ProfileField`.
+    pub fn as_str(&self) -> &str {
+        self.as_ref()
+    }
+}
diff --git a/crates/ruma-push-gateway-api/src/send_event_notification/v1.rs b/crates/ruma-push-gateway-api/src/send_event_notification/v1.rs
index ae1eba32..830afe8e 100644
--- a/crates/ruma-push-gateway-api/src/send_event_notification/v1.rs
+++ b/crates/ruma-push-gateway-api/src/send_event_notification/v1.rs
@@ -136,8 +136,12 @@ impl<'a> Notification<'a> {
 ///
 /// This may be used by push gateways to deliver less time-sensitive
 /// notifications in a way that will preserve battery power on mobile devices.
+///
+/// This type can hold an arbitrary string. To check for formats that are not available as a
+/// documented variant here, use its string representation, obtained through `.as_str()`.
 #[derive(Clone, Debug, PartialEq, Eq, StringEnum)]
 #[ruma_enum(rename_all = "snake_case")]
+#[non_exhaustive]
 pub enum NotificationPriority {
     /// A high priority notification
     High,
@@ -149,6 +153,13 @@ pub enum NotificationPriority {
     _Custom(String),
 }
 
+impl NotificationPriority {
+    /// Creates a string slice from this `NotificationPriority`.
+    pub fn as_str(&self) -> &str {
+        self.as_ref()
+    }
+}
+
 impl Default for NotificationPriority {
     fn default() -> Self {
         Self::High