diff --git a/gnu/packages/scheme.scm b/gnu/packages/scheme.scm
index db39632f0c..4178a45a89 100644
--- a/gnu/packages/scheme.scm
+++ b/gnu/packages/scheme.scm
@@ -917,39 +917,34 @@ (define-public scm
        (modify-phases %standard-phases
          (replace 'configure
                   (lambda* (#:key inputs outputs #:allow-other-keys)
-                    (zero? (system* "./configure"
-                                    (string-append "--prefix="
-                                                   (assoc-ref outputs "out"))))))
+                    (invoke "./configure"
+                            (string-append "--prefix="
+                                           (assoc-ref outputs "out")))))
          (add-before 'build 'pre-build
                      (lambda* (#:key inputs #:allow-other-keys)
                        (substitute* "Makefile"
-                         (("ginstall-info") "install-info"))))
+                         (("ginstall-info") "install-info"))
+                       #t))
          (replace 'build
                   (lambda* (#:key inputs outputs #:allow-other-keys)
                     (setenv "SCHEME_LIBRARY_PATH"
                             (string-append (assoc-ref inputs "slib")
                                            "/lib/slib/"))
-                    (and
-                     (zero? (system* "make" "scmlit" "CC=gcc"))
-                     (zero? (system* "make" "all")))))
+                    (invoke "make" "scmlit" "CC=gcc")
+                    (invoke "make" "all")))
          (add-after 'install 'post-install
                     (lambda* (#:key inputs outputs #:allow-other-keys)
-                      (let ((req
-                             (string-append (assoc-ref outputs "out")
-                                            "/lib/scm/require.scm")))
-                        (and
-                         (delete-file req)
-                         (format (open req (logior O_WRONLY O_CREAT))
-                                 "(define (library-vicinity) ~s)\n"
-                                 (string-append (assoc-ref inputs "slib")
-                                                "/lib/slib/"))
+                      (let* ((out         (assoc-ref outputs "out"))
+                             (req (string-append out "/lib/scm/require.scm")))
+                        (delete-file req)
+                        (format (open req (logior O_WRONLY O_CREAT))
+                                "(define (library-vicinity) ~s)\n"
+                                (string-append (assoc-ref inputs "slib")
+                                               "/lib/slib/"))
 
-                         ;; We must generate the slibcat file
-                         (zero? (system*
-                                 (string-append
-                                  (assoc-ref outputs "out")
-                                  "/bin/scm")
-                                 "-br" "new-catalog")))))))))
+                        ;; We must generate the slibcat file.
+                        (invoke (string-append out "/bin/scm")
+                                "-br" "new-catalog")))))))
     (inputs `(("slib" ,slib)))
     (native-inputs `(("unzip" ,unzip)
                      ("texinfo" ,texinfo)))