diff --git a/crates/ruma-identifiers/src/macros.rs b/crates/ruma-identifiers/src/macros.rs
index 8fe87c49..676f57ad 100644
--- a/crates/ruma-identifiers/src/macros.rs
+++ b/crates/ruma-identifiers/src/macros.rs
@@ -235,6 +235,30 @@ macro_rules! opaque_identifier_common_impls {
             }
         }
 
+        impl PartialEq<$id> for Box<$id> {
+            fn eq(&self, other: &$id) -> bool {
+                self.as_str() == other.as_str()
+            }
+        }
+
+        impl PartialEq<&'_ $id> for Box<$id> {
+            fn eq(&self, other: &&$id) -> bool {
+                self.as_str() == other.as_str()
+            }
+        }
+
+        impl PartialEq<Box<$id>> for $id {
+            fn eq(&self, other: &Box<$id>) -> bool {
+                self.as_str() == other.as_str()
+            }
+        }
+
+        impl PartialEq<Box<$id>> for &'_ $id {
+            fn eq(&self, other: &Box<$id>) -> bool {
+                self.as_str() == other.as_str()
+            }
+        }
+
         as_str_based_impls!($id);
         partial_eq_string!($id);
         partial_eq_string!(Box<$id>);