diff --git a/gnu/packages/bioinformatics.scm b/gnu/packages/bioinformatics.scm
index e501c842656..9e7191dad87 100644
--- a/gnu/packages/bioinformatics.scm
+++ b/gnu/packages/bioinformatics.scm
@@ -10972,7 +10972,10 @@ expression report comparing samples in an easily configurable manner.")
        (modify-phases %standard-phases
          (add-before 'bootstrap 'autoreconf
            (lambda _
-             (invoke "autoreconf" "-vif"))))))
+             (invoke "autoreconf" "-vif")))
+         (add-before 'configure 'set-PYTHONPATH
+           (lambda _
+             (setenv "PYTHONPATH" (getenv "GUIX_PYTHONPATH")))))))
     (inputs
      (list grep
            coreutils