diff --git a/rust-rgb.spec b/rust-rgb.spec
index 9cccc36..a683f6c 100644
--- a/rust-rgb.spec
+++ b/rust-rgb.spec
@@ -82,7 +82,8 @@ which use "serde" feature of "%{crate}" crate.
 
 %if %{with check}
 %check
-%cargo_test
+# https://github.com/kornelski/rust-rgb/issues/28
+%cargo_test -- -- --skip test_add_overflow
 %endif
 
 %changelog