diff --git a/sagemath.spec b/sagemath.spec
index 0b31743..7dc962f 100644
--- a/sagemath.spec
+++ b/sagemath.spec
@@ -68,6 +68,8 @@ URL:		http://www.sagemath.org
 Source0:	http://boxen.math.washington.edu/home/%{name}/sage-mirror/src/sage-%{version}.tar.gz
 Source1:	gprc.expect
 Source2:	makecmds.sty
+# maxima(-runtime-ecl) not available: https://bugzilla.redhat.com/show_bug.cgi?id=1380102
+ExcludeArch: aarch64
 
 # Upstream uses mpir not gmp, but the rpm package is tailored to use gmp
 Patch1:		%{name}-gmp.patch
@@ -1566,6 +1568,7 @@ exit 0
 %changelog
 * Mon Sep 26 2016 Dominik Mierzejewski <rpm@greysector.net> - 7.3-4
 - rebuilt for matplotlib-2.0.0
+- exclude aarch64 due to missing BR: maxima-runtime-ecl
 
 * Mon Sep  5 2016 Jerry James <loganjerry@gmail.com> - 7.3-3
 - Rebuild for ntl 9.11.0