diff --git a/src/display-2.lisp b/src/display-2.lisp
index 739867d0c..f712bc89e 100644
--- a/src/display-2.lisp
+++ b/src/display-2.lisp
@@ -35,8 +35,8 @@
 (defun attribute-equal-careful-null-and-symbol (a b)
   (if (or (null a) (null b))
       (and (null a) (null b))
-      (lem-core::attribute-equal (lem-core:ensure-attribute a)
-                                 (lem-core:ensure-attribute b))))
+      (lem-core:attribute-equal (lem-core:ensure-attribute a)
+                                (lem-core:ensure-attribute b))))
 
 (defun logical-line-equal (a b)
   (and (string= (logical-line-string a) (logical-line-string b))
diff --git a/src/internal-packages.lisp b/src/internal-packages.lisp
index e91211e6e..0eab6f486 100644
--- a/src/internal-packages.lisp
+++ b/src/internal-packages.lisp
@@ -86,6 +86,7 @@
    :attribute-value
    :ensure-attribute
    :merge-attribute
+   :attribute-equal
    :set-attribute
    :set-attribute-foreground
    :set-attribute-background