diff --git a/packages/common/src/traits/Identifiable.trait.ts b/packages/common/src/traits/Identifiable.trait.ts
index ff7aeac..f91a546 100644
--- a/packages/common/src/traits/Identifiable.trait.ts
+++ b/packages/common/src/traits/Identifiable.trait.ts
@@ -14,12 +14,12 @@ export module Identifiable {
         Kind extends string,
         ID,
     >(
+        self:  Identifiable<Kind, ID>,
         that:  Identifiable<Kind, ID>,
-        to:    Identifiable<Kind, ID>,
     ): boolean {
         // Two elements can only be equal if they both have a defined ID
-        return Option.isSome(that.id) && Option.isSome(to.id)
-            ? Equal.equals(that.id.value, to.id.value)
+        return Option.isSome(self.id) && Option.isSome(that.id)
+            ? Equal.equals(self.id.value, that.id.value)
             : false
     }
 }