diff --git a/gnu/packages/c.scm b/gnu/packages/c.scm
index 96b4e904f7..b12aaf184a 100644
--- a/gnu/packages/c.scm
+++ b/gnu/packages/c.scm
@@ -1365,20 +1365,21 @@ will take care of dispatching tasks to available cores.")
                   "0x9f7ivww8c7cigf4ck0hfx2bm79qgx6q4ccwzqbzkrmcrl9shfb"))))
       (build-system cmake-build-system)
       (arguments
-       `(#:phases
-         (modify-phases %standard-phases
-           (delete 'build)
-           (delete 'configure)
-           (replace 'check
-             (lambda* (#:key tests? #:allow-other-keys)
-               (when tests?
-                 (with-directory-excursion "test"
-                   (invoke "cmake" ".")
-                   (invoke "make")))))
-           (replace 'install
-             (lambda* (#:key outputs #:allow-other-keys)
-               (let ((out (assoc-ref outputs "out")))
-                 (install-file "utf8.h" (string-append out "/include"))))))))
+       (list
+        #:phases
+        #~(modify-phases %standard-phases
+            (delete 'build)
+            (delete 'configure)
+            (replace 'check
+              (lambda* (#:key tests? #:allow-other-keys)
+                (when tests?
+                  (with-directory-excursion "test"
+                    (invoke "cmake" ".")
+                    (invoke "make")))))
+            (replace 'install
+              (lambda* (#:key outputs #:allow-other-keys)
+                (install-file "utf8.h"
+                              (string-append #$output "/include/utf8")))))))
       (home-page "https://github.com/sheredom/utf8.h")
       (synopsis "Single header UTF-8 string functions for C and C++")
       (description "A simple one header solution to supporting UTF-8 strings in
diff --git a/gnu/packages/electronics.scm b/gnu/packages/electronics.scm
index 8ca956df26..f0c65c53c7 100644
--- a/gnu/packages/electronics.scm
+++ b/gnu/packages/electronics.scm
@@ -298,14 +298,6 @@ supported devices, as well as input/output file format support.")
                   "add_subdirectory("
                   (search-input-directory inputs "share/glad") ;source_dir
                   " src/glad)\n")))))                          ;binary dir
-          (add-before 'configure 'fix-utf8-include-directive
-            ;; Our utf8-h package makes the header available as "utf8.h"
-            ;; directly rather than "utf8/utf8.h".
-            (lambda _
-              (substitute* '("src/openboardview/FileFormats/BRDFile.cpp"
-                             "src/openboardview/FileFormats/BRDFileBase.cpp"
-                             "src/openboardview/BoardView.cpp")
-                (("utf8/utf8.h") "utf8.h"))))
           (add-before 'configure 'dynamically-load-gtk-via-absolute-path
             ;; The GTK library is not linked thus not present in the RUNPATH of
             ;; the produced binary; the absolute path of the libraries must to