diff --git a/doc/build.scm b/doc/build.scm
index def4bdf18a..7256fb9bb5 100644
--- a/doc/build.scm
+++ b/doc/build.scm
@@ -141,7 +141,7 @@ (define (make-version-texi language)
                             (date->string date "~B ~Y")
                             version version))))))
 
-          (install-file #$(file-append* documentation "/htmlxref.cnf")
+          (install-file #$(file-append documentation "/htmlxref.cnf")
                         #$output)
 
           (for-each (lambda (texi)