diff --git a/crates/ruma-macros/src/events/event_type.rs b/crates/ruma-macros/src/events/event_type.rs
index b18ac0dd..df49bfa8 100644
--- a/crates/ruma-macros/src/events/event_type.rs
+++ b/crates/ruma-macros/src/events/event_type.rs
@@ -208,7 +208,7 @@ fn generate_enum(
 
         #[allow(deprecated)]
         impl #ident {
-            fn to_cow_str(&self) -> ::std::borrow::Cow<'_, ::std::primitive::str> {
+            pub fn to_cow_str(&self) -> ::std::borrow::Cow<'_, ::std::primitive::str> {
                 match self {
                     #(#to_cow_str_match_arms,)*
                     Self::_Custom(crate::PrivOwnedStr(s)) => ::std::borrow::Cow::Borrowed(s),