diff --git a/sagemath.spec b/sagemath.spec
index a5ef743..d60d8f2 100644
--- a/sagemath.spec
+++ b/sagemath.spec
@@ -69,7 +69,7 @@ Source0:	http://boxen.math.washington.edu/home/%{name}/sage-mirror/src/sage-%{ve
 Source1:	gprc.expect
 Source2:	makecmds.sty
 # Follow maxima's ExclusiveArch, except aarch64
-# maxima(-runtime-ecl) not available: https://bugzilla.redhat.com/show_bug.cgi?id=1380102
+# maxima(-runtime-ecl) and linbox not available: https://bugzilla.redhat.com/show_bug.cgi?id=1380191
 ExclusiveArch: %{arm} %{ix86} x86_64 ppc sparcv9
 
 # Upstream uses mpir not gmp, but the rpm package is tailored to use gmp