diff --git a/pkgs/applications/networking/browsers/firefox/common.nix b/pkgs/applications/networking/browsers/firefox/common.nix
index ed557bae7b6b..aadbb32d6e02 100644
--- a/pkgs/applications/networking/browsers/firefox/common.nix
+++ b/pkgs/applications/networking/browsers/firefox/common.nix
@@ -497,6 +497,9 @@ buildStdenv.mkDerivation ({
 
   preBuild = ''
     cd mozobj
+  '' + lib.optionalString (lib.versionAtLeast version "120") ''
+    # https://bugzilla.mozilla.org/show_bug.cgi?id=1864083
+    export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE $(pkg-config dbus-1 --cflags)"
   '';
 
   postBuild = ''