diff --git a/internal/kurious/domain/error.go b/internal/kurious/domain/error.go
index 75fcac5..f78426b 100644
--- a/internal/kurious/domain/error.go
+++ b/internal/kurious/domain/error.go
@@ -1,8 +1,6 @@
 package domain
 
-import (
-	cerrors "git.loyso.art/frx/kurious/internal/common/errors"
-)
+import "errors"
 
-// ErrNotImplemented is delegated to common/errors.ErrNotImplemented for consistency.
-var ErrNotImplemented = cerrors.ErrNotImplemented
+// ErrNotImplemented is returned by interface stubs that have not been implemented yet.
+var ErrNotImplemented = errors.New("not implemented")