diff --git a/rust-scroll.spec b/rust-scroll.spec
index 046f112..171ce38 100644
--- a/rust-scroll.spec
+++ b/rust-scroll.spec
@@ -6,7 +6,7 @@
 
 Name:           rust-%{crate}
 Version:        0.10.2
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Powerful, extensible, generic, endian-aware Read/Write traits for byte buffers
 
 # Upstream license specification: MIT
@@ -104,10 +104,19 @@ which use "std" feature of "%{crate}" crate.
 
 %if %{with check}
 %check
+%ifnarch s390x
 %cargo_test -a
+%else
+# one doc test is broken on s390x / big-endian
+# https://github.com/m4b/scroll/issues/77
+%cargo_test -a -- --lib
+%endif
 %endif
 
 %changelog
+* Fri Nov 06 2020 Fabio Valentini <decathorpe@gmail.com> - 0.10.2-2
+- Disable doctests on s390x.
+
 * Fri Nov 06 2020 Fabio Valentini <decathorpe@gmail.com> - 0.10.2-1
 - Update to version 0.10.2.
 - Fixes RHBZ#1886713