diff --git a/gnu/packages/engineering.scm b/gnu/packages/engineering.scm
index 9d06b77c27..0ef1870a50 100644
--- a/gnu/packages/engineering.scm
+++ b/gnu/packages/engineering.scm
@@ -3692,12 +3692,11 @@ (define-public xschem
          (modify-phases %standard-phases
            (delete 'configure)
            (add-before 'build 'setenv
-             (lambda _
-               (setenv "CC"
-                       ,(cc-for-target))
+             (lambda* (#:key outputs #:allow-other-keys)
+               (setenv "CC" ,(cc-for-target))
                (invoke "./configure"
                        (string-append "--prefix="
-                                      (assoc-ref %outputs "out"))) #t)))))
+                                      (assoc-ref outputs "out"))))))))
       (synopsis "Hierarchical schematic editor")
       (description
        "Xschem is an X11 schematic editor written in C and focused on