diff --git a/thunderbird.spec b/thunderbird.spec
index f09f63e..40af462 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -58,6 +58,7 @@ Release:        2%{?dist}
 URL:            http://www.mozilla.org/projects/thunderbird/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 Group:          Applications/Internet
+ExcludeArch:    armv7hl
 Source0:        ftp://ftp.mozilla.org/pub/thunderbird/releases/%{version}%{?pre_version}/source/thunderbird-%{version}%{?pre_version}.source.tar.bz2
 %if %{build_langpacks}
 Source1:        thunderbird-langpacks-%{version}-20130916.tar.xz