diff --git a/crates/ruma-client-api/src/filter.rs b/crates/ruma-client-api/src/filter.rs
index 5a48b6c0..0d6cc083 100644
--- a/crates/ruma-client-api/src/filter.rs
+++ b/crates/ruma-client-api/src/filter.rs
@@ -47,10 +47,7 @@ impl Default for EventFormat {
 }
 
 /// Relation types as defined in `rel_type` of an `m.relates_to` field.
-///
-/// This type can hold an arbitrary string. To build this with a custom value, convert it from a
-/// string with `::from() / .into()`. To check for formats that are not available as a documented
-/// variant here, use its string representation, obtained through `.as_str()`.
+#[doc = include_str!(concat!(env!("CARGO_MANIFEST_DIR"), "/src/doc/string_enum.md"))]
 #[derive(Clone, Debug, PartialEq, Eq, StringEnum)]
 #[cfg(feature = "unstable-msc3440")]
 #[non_exhaustive]
diff --git a/crates/ruma-client-api/src/push.rs b/crates/ruma-client-api/src/push.rs
index 27f5b476..4586fa14 100644
--- a/crates/ruma-client-api/src/push.rs
+++ b/crates/ruma-client-api/src/push.rs
@@ -197,10 +197,7 @@ impl RuleKind {
 }
 
 /// Which kind a pusher is.
-///
-/// This type can hold an arbitrary string. To build this with a custom value, convert it from a
-/// string with `::from() / .into()`. To check for formats that are not available as a documented
-/// variant here, use its string representation, obtained through `.as_str()`.
+#[doc = include_str!(concat!(env!("CARGO_MANIFEST_DIR"), "/src/doc/string_enum.md"))]
 #[derive(Clone, Debug, PartialEq, Eq, StringEnum)]
 #[ruma_enum(rename_all = "snake_case")]
 #[non_exhaustive]
diff --git a/crates/ruma-client-api/src/search/search_events.rs b/crates/ruma-client-api/src/search/search_events.rs
index 6cc9e655..fc634087 100644
--- a/crates/ruma-client-api/src/search/search_events.rs
+++ b/crates/ruma-client-api/src/search/search_events.rs
@@ -295,10 +295,7 @@ pub mod v3 {
     }
 
     /// The keys to search for.
-    ///
-    /// This type can hold an arbitrary string. To build this with a custom value, convert it from a
-    /// string with `::from() / .into()`. To check for formats that are not available as a
-    /// documented variant here, use its string representation, obtained through `.as_str()`.
+    #[doc = include_str!(concat!(env!("CARGO_MANIFEST_DIR"), "/src/doc/string_enum.md"))]
     #[derive(Clone, Debug, PartialEq, Eq, StringEnum)]
     #[non_exhaustive]
     pub enum SearchKeys {
@@ -326,10 +323,7 @@ pub mod v3 {
     }
 
     /// The order in which to search for results.
-    ///
-    /// This type can hold an arbitrary string. To build this with a custom value, convert it from a
-    /// string with `::from() / .into()`. To check for formats that are not available as a
-    /// documented variant here, use its string representation, obtained through `.as_str()`.
+    #[doc = include_str!(concat!(env!("CARGO_MANIFEST_DIR"), "/src/doc/string_enum.md"))]
     #[derive(Clone, Debug, PartialEq, Eq, StringEnum)]
     #[cfg_attr(not(feature = "unstable-exhaustive-types"), non_exhaustive)]
     #[ruma_enum(rename_all = "snake_case")]
diff --git a/crates/ruma-common/src/events/key/verification.rs b/crates/ruma-common/src/events/key/verification.rs
index 06810f6f..8a41000f 100644
--- a/crates/ruma-common/src/events/key/verification.rs
+++ b/crates/ruma-common/src/events/key/verification.rs
@@ -41,10 +41,7 @@ impl HashAlgorithm {
 }
 
 /// A key agreement protocol.
-///
-/// This type can hold an arbitrary string. To build this with a custom value, convert it from a
-/// string with `::from() / .into()`. To check for formats that are not available as a documented
-/// variant here, use its string representation, obtained through `.as_str()`.
+#[doc = include_str!(concat!(env!("CARGO_MANIFEST_DIR"), "/src/doc/string_enum.md"))]
 #[derive(Clone, Debug, PartialEq, Eq, StringEnum)]
 #[ruma_enum(rename_all = "kebab-case")]
 #[non_exhaustive]
@@ -67,10 +64,7 @@ impl KeyAgreementProtocol {
 }
 
 /// A message authentication code algorithm.
-///
-/// This type can hold an arbitrary string. To build this with a custom value, convert it from a
-/// string with `::from() / .into()`. To check for formats that are not available as a documented
-/// variant here, use its string representation, obtained through `.as_str()`.
+#[doc = include_str!(concat!(env!("CARGO_MANIFEST_DIR"), "/src/doc/string_enum.md"))]
 #[derive(Clone, Debug, PartialEq, Eq, StringEnum)]
 #[ruma_enum(rename_all = "kebab-case")]
 #[non_exhaustive]
@@ -93,10 +87,7 @@ impl MessageAuthenticationCode {
 }
 
 /// A Short Authentication String method.
-///
-/// This type can hold an arbitrary string. To build this with a custom value, convert it from a
-/// string with `::from() / .into()`. To check for formats that are not available as a documented
-/// variant here, use its string representation, obtained through `.as_str()`.
+#[doc = include_str!(concat!(env!("CARGO_MANIFEST_DIR"), "/src/doc/string_enum.md"))]
 #[derive(Clone, Debug, PartialEq, Eq, StringEnum)]
 #[ruma_enum(rename_all = "snake_case")]
 #[non_exhaustive]
@@ -135,10 +126,7 @@ impl Relation {
 }
 
 /// A Short Authentication String (SAS) verification method.
-///
-/// This type can hold an arbitrary string. To build this with a custom value, convert it from a
-/// string with `::from() / .into()`. To check for formats that are not available as a documented
-/// variant here, use its string representation, obtained through `.as_str()`.
+#[doc = include_str!(concat!(env!("CARGO_MANIFEST_DIR"), "/src/doc/string_enum.md"))]
 #[derive(Clone, Debug, PartialEq, Eq, StringEnum)]
 #[non_exhaustive]
 pub enum VerificationMethod {
diff --git a/crates/ruma-common/src/events/room/message.rs b/crates/ruma-common/src/events/room/message.rs
index 18f78824..8f4bc6fe 100644
--- a/crates/ruma-common/src/events/room/message.rs
+++ b/crates/ruma-common/src/events/room/message.rs
@@ -1492,10 +1492,7 @@ impl ServerNoticeType {
 }
 
 /// Types of usage limits.
-///
-/// This type can hold an arbitrary string. To build this with a custom value, convert it from a
-/// string with `::from() / .into()`. To check for formats that are not available as a documented
-/// variant here, use its string representation, obtained through `.as_str()`.
+#[doc = include_str!(concat!(env!("CARGO_MANIFEST_DIR"), "/src/doc/string_enum.md"))]
 #[derive(Clone, Debug, PartialEq, Eq, StringEnum)]
 #[ruma_enum(rename_all = "snake_case")]
 #[non_exhaustive]
@@ -1518,10 +1515,7 @@ impl LimitType {
 }
 
 /// The format for the formatted representation of a message body.
-///
-/// This type can hold an arbitrary string. To build this with a custom value, convert it from a
-/// string with `::from() / .into()`. To check for formats that are not available as a documented
-/// variant here, use its string representation, obtained through `.as_str()`.
+#[doc = include_str!(concat!(env!("CARGO_MANIFEST_DIR"), "/src/doc/string_enum.md"))]
 #[derive(Clone, Debug, PartialEq, Eq, StringEnum)]
 #[non_exhaustive]
 pub enum MessageFormat {