diff --git a/gnu/packages/bioinformatics.scm b/gnu/packages/bioinformatics.scm
index 934782af91..5f3148530f 100644
--- a/gnu/packages/bioinformatics.scm
+++ b/gnu/packages/bioinformatics.scm
@@ -1883,8 +1883,7 @@ (define-public bwa
                (install-file "bwa" bin)
                (install-file "libbwa.a" lib)
                (install-file "README.md" doc)
-               (install-file "bwa.1" man))
-             #t))
+               (install-file "bwa.1" man))))
            ;; no "configure" script
           (delete 'configure))))
     (inputs `(("zlib" ,zlib)))