diff --git a/gnu/packages/tex.scm b/gnu/packages/tex.scm
index 8cf749e318..bf2e19c149 100644
--- a/gnu/packages/tex.scm
+++ b/gnu/packages/tex.scm
@@ -120,7 +120,7 @@ (define with-documentation?
                           (string-append doc "/doc")))
                        '())
                  (mkdir-p out)
-                 (copy-recursively (assoc-ref inputs "source") out)
+                 (copy-recursively "." out)
                  ,@(if with-documentation?
                        '((delete-file-recursively (string-append out "/doc")))
                        '())