diff --git a/firefox.spec b/firefox.spec
index cfef1c4..5f81b2e 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -152,7 +152,7 @@ ExcludeArch: armv7hl
 Summary:        Mozilla Firefox Web browser
 Name:           firefox
 Version:        90.0
-Release:        1%{?pre_tag}%{?dist}
+Release:        2%{?pre_tag}%{?dist}
 URL:            https://www.mozilla.org/firefox/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 Source0:        https://archive.mozilla.org/pub/firefox/releases/%{version}%{?pre_version}/source/firefox-%{version}%{?pre_version}.source.tar.xz
@@ -330,6 +330,7 @@ BuildRequires:  mutter
 BuildRequires:  gsettings-desktop-schemas
 BuildRequires:  gnome-settings-daemon
 BuildRequires:  mesa-dri-drivers
+BuildRequires:  xorg-x11-server-Xwayland
 %endif
 %if 0%{?run_firefox_tests}
 BuildRequires:  procps-ng
@@ -1038,6 +1039,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #---------------------------------------------------------------------
 
 %changelog
+* Tue Jul 13 2021 Martin Stransky <stransky@redhat.com> - 90.0-2
+- Added xorg-x11-server-Xwayland dependency for Mutter
+
 * Mon Jul 12 2021 Martin Stransky <stransky@redhat.com> - 90.0-1
 - Updated to 90.0