diff --git a/gnu/packages/package-management.scm b/gnu/packages/package-management.scm
index 2e4ff51900..b833ce29e7 100644
--- a/gnu/packages/package-management.scm
+++ b/gnu/packages/package-management.scm
@@ -1408,8 +1408,8 @@ environments.")
                   "0k9zkdyyzir3fvlbcfcqy17k28b51i20rpbjwlx2i1mwd2pw9cxc")))))))
 
 (define-public guix-build-coordinator
-  (let ((commit "c44d485bba42034804beb47afc23005c4e73ea96")
-        (revision "85"))
+  (let ((commit "f39f16000469429745bd8aff3cd4d59b7c489fa1")
+        (revision "86"))
     (package
       (name "guix-build-coordinator")
       (version (git-version "0" revision commit))
@@ -1420,75 +1420,74 @@ environments.")
                       (commit commit)))
                 (sha256
                  (base32
-                  "1y69yrmmifdp55l5c5b8iiq0llwpggxmq6a4233cdll3bhfxaicl"))
+                  "1lmbwbza87xzbvmzw44sgpscmqjfl5kpgfl79n7hzwa1icqqb7mg"))
                 (file-name (string-append name "-" version "-checkout"))))
       (build-system gnu-build-system)
       (arguments
-       `(#:modules (((guix build guile-build-system)
+       (list
+        #:modules `(((guix build guile-build-system)
                      #:select (target-guile-effective-version))
                     ,@%gnu-build-system-modules)
-         #:imported-modules ((guix build guile-build-system)
+        #:imported-modules `((guix build guile-build-system)
                              ,@%gnu-build-system-modules)
-         #:phases
-         (modify-phases %standard-phases
-           (add-before 'build 'set-GUILE_AUTO_COMPILE
-             (lambda _
-               ;; To avoid warnings relating to 'guild'.
-               (setenv "GUILE_AUTO_COMPILE" "0")
-               #t))
-           (add-after 'install 'wrap-executable
-             (lambda* (#:key inputs outputs target #:allow-other-keys)
-               (let* ((out (assoc-ref outputs "out"))
-                      (bin (string-append out "/bin"))
-                      (guile (assoc-ref inputs "guile"))
-                      (version (target-guile-effective-version))
-                      (scm (string-append out "/share/guile/site/" version))
-                      (go  (string-append out "/lib/guile/" version "/site-ccache")))
-                 (for-each
-                  (lambda (file)
-                    (simple-format (current-error-port) "wrapping: ~A\n" file)
-                    (let ((guile-inputs (list
-                                         "guile-json"
-                                         "guile-gcrypt"
-                                         "guix"
-                                         "guile-prometheus"
-                                         "guile-lib"
-                                         "guile-lzlib"
-                                         "guile-zlib"
-                                         "guile-sqlite3"
-                                         "guile-gnutls"
-                                         ,@(if (target-hurd?)
-                                               '()
-                                               '("guile-fibers")))))
-                      (wrap-program file
-                        `("PATH" ":" prefix
-                          (,bin
-                           ;; Support building without sqitch as an input, as it
-                           ;; can't be cross-compiled yet
-                           ,@(or (and=> (assoc-ref inputs "sqitch")
-                                        list)
-                                 '())))
-                        `("GUILE_LOAD_PATH" ":" prefix
-                          (,scm ,(string-join
+        #:phases
+        #~(modify-phases %standard-phases
+            (add-before 'build 'set-GUILE_AUTO_COMPILE
+              (lambda _
+                ;; To avoid warnings relating to 'guild'.
+                (setenv "GUILE_AUTO_COMPILE" "0")))
+            (add-after 'install 'wrap-executable
+              (lambda* (#:key inputs outputs target #:allow-other-keys)
+                (let* ((out (assoc-ref outputs "out"))
+                       (bin (string-append out "/bin"))
+                       (guile (assoc-ref inputs "guile"))
+                       (version (target-guile-effective-version))
+                       (scm (string-append out "/share/guile/site/" version))
+                       (go  (string-append out "/lib/guile/" version "/site-ccache")))
+                  (for-each
+                   (lambda (file)
+                     (simple-format (current-error-port) "wrapping: ~A\n" file)
+                     (let ((guile-inputs (list
+                                          "guile-json"
+                                          "guile-gcrypt"
+                                          "guix"
+                                          "guile-prometheus"
+                                          "guile-lib"
+                                          "guile-lzlib"
+                                          "guile-zlib"
+                                          "guile-sqlite3"
+                                          "guile-gnutls"
+                                          #$@(if (target-hurd?)
+                                                 '()
+                                                 '("guile-fibers")))))
+                       (wrap-program file
+                         `("PATH" ":" prefix
+                           (,bin
+                            ;; Support building without sqitch as an input, as it
+                            ;; can't be cross-compiled yet
+                            ,@(or (and=> (assoc-ref inputs "sqitch")
+                                         list)
+                                  '())))
+                         `("GUILE_LOAD_PATH" ":" prefix
+                           (,scm ,(string-join
+                                   (map (lambda (input)
+                                          (simple-format
+                                           #f "~A/share/guile/site/~A"
+                                           (assoc-ref inputs input)
+                                           version))
+                                        guile-inputs)
+                                   ":")))
+                         `("GUILE_LOAD_COMPILED_PATH" ":" prefix
+                           (,go ,(string-join
                                   (map (lambda (input)
                                          (simple-format
-                                          #f "~A/share/guile/site/~A"
+                                          #f "~A/lib/guile/~A/site-ccache"
                                           (assoc-ref inputs input)
                                           version))
                                        guile-inputs)
-                                  ":")))
-                        `("GUILE_LOAD_COMPILED_PATH" ":" prefix
-                          (,go ,(string-join
-                                 (map (lambda (input)
-                                        (simple-format
-                                         #f "~A/lib/guile/~A/site-ccache"
-                                         (assoc-ref inputs input)
-                                         version))
-                                      guile-inputs)
-                                 ":"))))))
-                  (find-files bin)))
-               #t))
-           (delete 'strip))))             ; As the .go files aren't compatible
+                                  ":"))))))
+                   (find-files bin)))))
+            (delete 'strip))))             ; As the .go files aren't compatible
       (native-inputs
        (list pkg-config
              autoconf