diff --git a/gnu/packages/gcc.scm b/gnu/packages/gcc.scm
index bda6a2b48a..e01beaca86 100644
--- a/gnu/packages/gcc.scm
+++ b/gnu/packages/gcc.scm
@@ -623,10 +623,14 @@ as the 'native-search-paths' field."
                                                 (srfi srfi-26))
                                                ,@(package-arguments gcc))
        ((#:configure-flags flags)
-        `(cons (string-append "--enable-languages="
-                              ,(string-join languages ","))
-               (remove (cut string-match "--enable-languages.*" <>)
-                       ,flags)))
+        `(append (list (string-append "--enable-languages="
+                                      ,(string-join languages ","))
+                       ;; TODO: Move to 'gcc' in the next rebuild cycle.
+                       (string-append "--with-as="
+                                      (assoc-ref %build-inputs "binutils")
+                                      "/bin/as"))
+                 (remove (cut string-match "--enable-languages.*" <>)
+                         ,flags)))
        ((#:phases phases)
         `(modify-phases ,phases
            (add-after 'install 'remove-broken-or-conflicting-files