diff --git a/gnu/packages/games.scm b/gnu/packages/games.scm
index 5210041f0c..c4048c6edc 100644
--- a/gnu/packages/games.scm
+++ b/gnu/packages/games.scm
@@ -2176,7 +2176,7 @@ (define-public seahorse-adventures
                    (lambda (p)
                      (format p
                              "#!~a~@
-                              export PYTHONPATH=~a:~a~@
+                              export GUIX_PYTHONPATH=~a:~a~@
                               exec -a \"~a\" ~a \"$@\"~%"
                              (which "bash") data (getenv "GUIX_PYTHONPATH")
                              (which "python3")